{"id":1987,"date":"2023-06-19T18:08:09","date_gmt":"2023-06-19T10:08:09","guid":{"rendered":"https:\/\/xinchewhd.com.cn\/?p=1987"},"modified":"2023-06-19T18:11:36","modified_gmt":"2023-06-19T10:11:36","slug":"java%ef%bc%9a%e5%85%a5%e9%97%a8%e7%9f%a5%e8%af%86%e6%a2%b3%e7%90%86","status":"publish","type":"post","link":"https:\/\/xinchewhd.com.cn\/index.php\/java\/java%ef%bc%9a%e5%85%a5%e9%97%a8%e7%9f%a5%e8%af%86%e6%a2%b3%e7%90%86\/","title":{"rendered":"Java\uff1a\u5165\u95e8\u77e5\u8bc6\u68b3\u7406"},"content":{"rendered":"<div class=\"wxsyncmain\">\n<p style=\"text-align: center;\"><img decoding=\"async\" class=\"rich_pages wxw-img lazyload\" data-src=\"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2023\/05\/20230528050455701.jpeg\" src=\"https:\/\/s.nmxc.ltd\/sakurairo_vision\/@2.6\/load_svg\/inload.svg\" onerror=\"imgError(this)\" data-galleryid=\"\" data-ratio=\"0.66640625\" data-s=\"300,640\" data-type=\"jpeg\" data-w=\"1280\" \/><noscript><img decoding=\"async\" class=\"rich_pages wxw-img\" src=\"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2023\/05\/20230528050455701.jpeg\" data-galleryid=\"\" data-ratio=\"0.66640625\" data-s=\"300,640\" data-type=\"jpeg\" data-w=\"1280\" \/><\/noscript><\/p>\n<h1 style=\"margin-top: 0.9523em; margin-bottom: 0.4761em; font-family: Helvetica, Arial, 'Droid Sans', sans-serif; font-weight: bold; font-size: 1.5em; line-height: 0.9523em; border: 0px initial initial;\">\u4ece0-1\u8ba4\u8bc6Java<\/h1>\n<h2 style=\"margin-top: 1.111em; margin-bottom: 0.5556em; font-family: Helvetica, Arial, 'Droid Sans', sans-serif; font-weight: bold; font-size: 1.286em; line-height: 1.111em; border: 0px initial initial;\">\u7b80\u4ecb<\/h2>\n<p>Java\u662f\u9762\u5411\u5bf9\u8c61\u7f16\u7a0b\u3002<\/p>\n<p>Java\u8bed\u8a00\u57fa\u7840\u5305\u62ec\u6570\u636e\u7c7b\u578b\u548c\u8fd0\u7b97\u7b26\u3001\u63a7\u5236\u7ed3\u6784\u3001\u6570\u7ec4\u3001\u7c7b\u548c\u5bf9\u8c61\u3001\u5f02\u5e38\u5904\u7406\u3001\u679a\u4e3e\u548c\u6ce8\u89e3\u7b49\uff1b\u9762\u5411\u5bf9\u8c61\u5305\u62ec\u5c01\u88c5\u6027\u3001\u7ee7\u627f\u6027\u3001\u591a\u6001\u6027\u3001\u63a5\u53e3\u4e0e\u62bd\u8c61\u7c7b\u3001\u6cdb\u578b\u4e0e\u96c6\u5408\u3001\u591a\u7ebf\u7a0b\u4e0e\u5e76\u53d1\u7f16\u7a0b\u7b49\uff1b<\/p>\n<ul class=\"list-paddingleft-1\" style=\"margin-top: 0.2857em; margin-bottom: 0.714285em; margin-left: 2em; line-height: 1.42857em; list-style-position: outside; border: 0px initial initial;\">\n<li style=\"line-height: 1.42857em; border: 0px initial initial;\">Java\u6280\u672f\u4f53\u7cfb\u6240\u5305\u542b\u7684\u5185\u5bb9<\/li>\n<\/ul>\n<p style=\"text-align: center;\"><img decoding=\"async\" class=\"rich_pages wxw-img lazyload\" data-src=\"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2023\/05\/20230528050458682.png\" src=\"https:\/\/s.nmxc.ltd\/sakurairo_vision\/@2.6\/load_svg\/inload.svg\" onerror=\"imgError(this)\" data-galleryid=\"\" data-ratio=\"0.6018735362997658\" data-s=\"300,640\" data-type=\"png\" data-w=\"854\" \/><noscript><img decoding=\"async\" class=\"rich_pages wxw-img\" src=\"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2023\/05\/20230528050458682.png\" data-galleryid=\"\" data-ratio=\"0.6018735362997658\" data-s=\"300,640\" data-type=\"png\" data-w=\"854\" \/><\/noscript><\/p>\n<ul class=\"list-paddingleft-1\" style=\"margin-top: 0.2857em; margin-bottom: 0.714285em; margin-left: 2em; line-height: 1.42857em; list-style-position: outside; border: 0px initial initial;\">\n<li style=\"line-height: 1.42857em; border: 0px initial initial;\">Java\u8bed\u8a00\u53d1\u5c55\u72b6\u51b5<\/li>\n<\/ul>\n<p style=\"text-align: center;\"><img decoding=\"async\" class=\"rich_pages wxw-img lazyload\" data-src=\"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2023\/05\/20230528050501490.png\" src=\"https:\/\/s.nmxc.ltd\/sakurairo_vision\/@2.6\/load_svg\/inload.svg\" onerror=\"imgError(this)\" data-galleryid=\"\" data-ratio=\"0.5240825688073395\" data-s=\"300,640\" data-type=\"png\" data-w=\"1744\" \/><noscript><img decoding=\"async\" class=\"rich_pages wxw-img\" src=\"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2023\/05\/20230528050501490.png\" data-galleryid=\"\" data-ratio=\"0.5240825688073395\" data-s=\"300,640\" data-type=\"png\" data-w=\"1744\" \/><\/noscript><\/p>\n<h2 style=\"margin-top: 1.111em; margin-bottom: 0.5556em; font-family: Helvetica, Arial, 'Droid Sans', sans-serif; font-weight: bold; font-size: 1.286em; line-height: 1.111em; border: 0px initial initial;\">\u5f00\u53d1\u73af\u5883\u914d\u7f6e<\/h2>\n<h3 style=\"margin-top: 1.4285em; margin-bottom: 0.714285em; line-height: 1.42857em; font-family: Helvetica, Arial, 'Droid Sans', sans-serif; font-weight: bold; font-size: 1em; border: 0px initial initial;\">\u4e0b\u8f7dJDK<\/h3>\n<p>\u4e0b\u8f7d\u5730\u5740 \uff1awww.oracle.com\/technetwork\/java\/javase\/downloads<\/p>\n<ul class=\"list-paddingleft-1\" style=\"margin-top: 0.2857em; margin-bottom: 0.714285em; margin-left: 2em; line-height: 1.42857em; list-style-position: outside; border: 0px initial initial;\">\n<li style=\"line-height: 1.42857em; border: 0px initial initial;\">Java\u672f\u8bed<\/li>\n<\/ul>\n<p style=\"text-align: center;\"><img decoding=\"async\" class=\"rich_pages wxw-img lazyload\" data-src=\"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2023\/05\/20230528050505504.png\" src=\"https:\/\/s.nmxc.ltd\/sakurairo_vision\/@2.6\/load_svg\/inload.svg\" onerror=\"imgError(this)\" data-galleryid=\"\" data-ratio=\"0.6440872560275546\" data-s=\"300,640\" data-type=\"png\" data-w=\"1742\" \/><noscript><img decoding=\"async\" class=\"rich_pages wxw-img\" src=\"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2023\/05\/20230528050505504.png\" data-galleryid=\"\" data-ratio=\"0.6440872560275546\" data-s=\"300,640\" data-type=\"png\" data-w=\"1742\" \/><\/noscript><\/p>\n<h3 style=\"margin-top: 1.4285em; margin-bottom: 0.714285em; line-height: 1.42857em; font-family: Helvetica, Arial, 'Droid Sans', sans-serif; font-weight: bold; font-size: 1em; border: 0px initial initial;\">\u8bbe\u7f6eJDK<\/h3>\n<ol class=\"list-paddingleft-1\" style=\"margin-top: 0.2857em; margin-bottom: 0.714285em; margin-left: 2em; line-height: 1.42857em; list-style-position: outside; border: 0px initial initial;\">\n<li style=\"line-height: 1.42857em; border: 0px initial initial;\">\u5b89\u88c5jdk<\/li>\n<li style=\"line-height: 1.42857em; border: 0px initial initial;\">\u8bbe\u7f6e\u73af\u5883\u53d8\u91cf<\/li>\n<li style=\"line-height: 1.42857em; border: 0px initial initial;\">\u6d4b\u8bd5\uff1a<code style=\"line-height: 1.42857em; font-family: Monaco, Courier, monospace; border: 0px initial initial;\">javac -version<\/code><\/li>\n<\/ol>\n<ul class=\"list-paddingleft-1\" style=\"margin-top: 0.2857em; margin-bottom: 0.714285em; margin-left: 2em; line-height: 1.42857em; list-style-position: outside; border: 0px initial initial;\">\n<li style=\"line-height: 1.42857em; border: 0px initial initial;\">JDK\u76ee\u5f55\u6811<\/li>\n<\/ul>\n<p style=\"text-align: center;\"><img decoding=\"async\" class=\"rich_pages wxw-img lazyload\" data-src=\"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2023\/05\/20230528050510670.jpeg\" src=\"https:\/\/s.nmxc.ltd\/sakurairo_vision\/@2.6\/load_svg\/inload.svg\" onerror=\"imgError(this)\" data-galleryid=\"\" data-ratio=\"0.4019097222222222\" data-s=\"300,640\" data-type=\"jpeg\" data-w=\"1152\" \/><noscript><img decoding=\"async\" class=\"rich_pages wxw-img\" src=\"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2023\/05\/20230528050510670.jpeg\" data-galleryid=\"\" data-ratio=\"0.4019097222222222\" data-s=\"300,640\" data-type=\"jpeg\" data-w=\"1152\" \/><\/noscript><\/p>\n<h2 style=\"margin-top: 1.111em; margin-bottom: 0.5556em; font-family: Helvetica, Arial, 'Droid Sans', sans-serif; font-weight: bold; font-size: 1.286em; line-height: 1.111em; border: 0px initial initial;\">IDE\u4f7f\u7528<\/h2>\n<h3 style=\"margin-top: 1.4285em; margin-bottom: 0.714285em; line-height: 1.42857em; font-family: Helvetica, Arial, 'Droid Sans', sans-serif; font-weight: bold; font-size: 1em; border: 0px initial initial;\">IntelliJ IDEA<\/h3>\n<section style=\"text-indent: 2em;\">\u65b0\u5efa\u9879\u76ee<\/section>\n<section style=\"text-indent: 2em;\">\u7f16\u8f91\u533a<\/section>\n<section style=\"text-indent: 2em;\">\u8fd0\u884c<\/section>\n<h2 style=\"margin-top: 1.111em; margin-bottom: 0.5556em; font-family: Helvetica, Arial, 'Droid Sans', sans-serif; font-weight: bold; font-size: 1.286em; line-height: 1.111em; border: 0px initial initial;\">\u57fa\u672c\u8bed\u6cd5<\/h2>\n<h3 style=\"margin-top: 1.4285em; margin-bottom: 0.714285em; line-height: 1.42857em; font-family: Helvetica, Arial, 'Droid Sans', sans-serif; font-weight: bold; font-size: 1em; border: 0px initial initial;\">\u4e00\u4e2a\u7b80\u5355\u7684Java\u5e94\u7528\u7a0b\u5e8f<\/h3>\n<section class=\"code-snippet__fix code-snippet__js\">\n<pre class=\"code-snippet__js\" data-lang=\"cs\"><code><span class=\"code-snippet_outer\"><span class=\"code-snippet__keyword\">public<\/span> <span class=\"code-snippet__keyword\">class<\/span> <span class=\"code-snippet__title\">FirstSample<\/span>{\u00a0\u00a0 <\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 <span class=\"code-snippet__function\"><span class=\"code-snippet__keyword\">public<\/span> <span class=\"code-snippet__keyword\">static<\/span> <span class=\"code-snippet__keyword\">void<\/span> <span class=\"code-snippet__title\">main<\/span>(<span class=\"code-snippet__params\">String[] args<\/span>)<\/span>\u00a0\u00a0 {\u00a0 \u00a0 \u00a0 <\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0 System.<span class=\"code-snippet__keyword\">out<\/span>.println(<span class=\"code-snippet__string\">\"We will not use 'Hello, World!'\"<\/span>);\u00a0\u00a0 <\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 }<\/span><\/code><code><span class=\"code-snippet_outer\">}<\/span><\/code><\/pre>\n<\/section>\n<h3 style=\"margin-top: 1.4285em; margin-bottom: 0.714285em; line-height: 1.42857em; font-family: Helvetica, Arial, 'Droid Sans', sans-serif; font-weight: bold; font-size: 1em; border: 0px initial initial;\">\u6ce8\u91ca<\/h3>\n<section class=\"code-snippet__fix code-snippet__js\">\n<pre class=\"code-snippet__js\" data-lang=\"javascript\"><code><span class=\"code-snippet_outer\"><span class=\"code-snippet__comment\">\/\/ \u5355\u884c\u6ce8\u91ca<\/span><\/span><\/code><code><span class=\"code-snippet_outer\">\n<\/span><\/code><code><span class=\"code-snippet_outer\"><span class=\"code-snippet__comment\">\/* <\/span><\/span><\/code><code><span class=\"code-snippet_outer\"><span class=\"code-snippet__comment\">* \u591a\u884c\u6ce8\u91ca <\/span><\/span><\/code><code><span class=\"code-snippet_outer\"><span class=\"code-snippet__comment\">*\/<\/span><\/span><\/code><code><span class=\"code-snippet_outer\">\n<\/span><\/code><code><span class=\"code-snippet_outer\"><span class=\"code-snippet__comment\">\/** <\/span><\/span><\/code><code><span class=\"code-snippet_outer\"><span class=\"code-snippet__comment\">* \u6587\u6863\u6ce8\u91ca <\/span><\/span><\/code><code><span class=\"code-snippet_outer\"><span class=\"code-snippet__comment\">*\/<\/span><\/span><\/code><\/pre>\n<\/section>\n<h1 style=\"margin-top: 0.9523em; margin-bottom: 0.4761em; font-family: Helvetica, Arial, 'Droid Sans', sans-serif; font-weight: bold; font-size: 1.5em; line-height: 0.9523em; border: 0px initial initial;\">Java\u57fa\u7840\u77e5\u8bc6<\/h1>\n<h2 style=\"margin-top: 1.111em; margin-bottom: 0.5556em; font-family: Helvetica, Arial, 'Droid Sans', sans-serif; font-weight: bold; font-size: 1.286em; line-height: 1.111em; border: 0px initial initial;\">\u53d8\u91cf<\/h2>\n<section class=\"code-snippet__fix code-snippet__js\">\n<pre class=\"code-snippet__js\" data-lang=\"java\"><code><span class=\"code-snippet_outer\"><span class=\"code-snippet__comment\">\/\/ \u53d8\u91cf\u521d\u59cb\u5316<\/span><\/span><\/code><code><span class=\"code-snippet_outer\"><span class=\"code-snippet__keyword\">int<\/span> vacationDays = <span class=\"code-snippet__number\">12<\/span>;<\/span><\/code><code><span class=\"code-snippet_outer\"><span class=\"code-snippet__comment\">\/\/ \u5e38\u91cf<\/span><\/span><\/code><code><span class=\"code-snippet_outer\"><span class=\"code-snippet__keyword\">final<\/span> <span class=\"code-snippet__keyword\">double<\/span> CM_PER_INCH = <span class=\"code-snippet__number\">2.54<\/span>;<\/span><\/code><\/pre>\n<\/section>\n<h2 style=\"margin-top: 1.111em; margin-bottom: 0.5556em; font-family: Helvetica, Arial, 'Droid Sans', sans-serif; font-weight: bold; font-size: 1.286em; line-height: 1.111em; border: 0px initial initial;\">\u8fd0\u7b97\u7b26<\/h2>\n<section class=\"code-snippet__fix code-snippet__js\">\n<pre class=\"code-snippet__js\" data-lang=\"javascript\"><code><span class=\"code-snippet_outer\"><span class=\"code-snippet__comment\">\/\/ \u52a0\u51cf\u4e58\u9664<\/span><\/span><\/code><code><span class=\"code-snippet_outer\">\uff0b\u3001\uff0d\u3001*\u3001\/\u3001+=<\/span><\/code><code><span class=\"code-snippet_outer\"><span class=\"code-snippet__comment\">\/\/ \u53d6\u6a21\uff0c\u81ea\u589e\u3001\u81ea\u51cf<\/span><\/span><\/code><code><span class=\"code-snippet_outer\">%\u3001i++\u3001i--<\/span><\/code><code><span class=\"code-snippet_outer\"><span class=\"code-snippet__comment\">\/\/ \u4f4d\u8fd0\u7b97\u7b26<\/span><\/span><\/code><code><span class=\"code-snippet_outer\">&amp;\u3001|\u3001^\u3001~<\/span><\/code><code><span class=\"code-snippet_outer\"><span class=\"code-snippet__comment\">\/\/ \u903b\u8f91\u8fd0\u7b97\u7b26<\/span><\/span><\/code><code><span class=\"code-snippet_outer\">&amp;&amp;\u3001||\u3001\uff01<\/span><\/code><\/pre>\n<\/section>\n<h3 style=\"margin-top: 1.4285em; margin-bottom: 0.714285em; line-height: 1.42857em; font-family: Helvetica, Arial, 'Droid Sans', sans-serif; font-weight: bold; font-size: 1em; border: 0px initial initial;\">\u6570\u5b66\u51fd\u6570<\/h3>\n<section class=\"code-snippet__fix code-snippet__js\">\n<pre class=\"code-snippet__js\" data-lang=\"javascript\"><code><span class=\"code-snippet_outer\"><span class=\"code-snippet__comment\">\/\/ \u5e73\u65b9\u6839\u3001\u5e42\u8fd0\u7b97<\/span><\/span><\/code><code><span class=\"code-snippet_outer\">double y = <span class=\"code-snippet__built_in\">Math<\/span>.sqrt(x);<\/span><\/code><code><span class=\"code-snippet_outer\">double y = <span class=\"code-snippet__built_in\">Math<\/span>.pow(x\uff0ca);<\/span><\/code><code><span class=\"code-snippet_outer\">\n<\/span><\/code><code><span class=\"code-snippet_outer\"><span class=\"code-snippet__comment\">\/\/ \u4e09\u89d2\u51fd\u6570<\/span><\/span><\/code><code><span class=\"code-snippet_outer\"><span class=\"code-snippet__built_in\">Math<\/span>.sin<\/span><\/code><code><span class=\"code-snippet_outer\"><span class=\"code-snippet__built_in\">Math<\/span>.cos<\/span><\/code><code><span class=\"code-snippet_outer\"><span class=\"code-snippet__built_in\">Math<\/span>.tan<\/span><\/code><code><span class=\"code-snippet_outer\">\n<\/span><\/code><code><span class=\"code-snippet_outer\"><span class=\"code-snippet__comment\">\/\/ \u5e38\u91cf<\/span><\/span><\/code><code><span class=\"code-snippet_outer\"><span class=\"code-snippet__built_in\">Math<\/span>.PI<\/span><\/code><code><span class=\"code-snippet_outer\"><span class=\"code-snippet__built_in\">Math<\/span>.E<\/span><\/code><\/pre>\n<\/section>\n<h3 style=\"margin-top: 1.4285em; margin-bottom: 0.714285em; line-height: 1.42857em; font-family: Helvetica, Arial, 'Droid Sans', sans-serif; font-weight: bold; font-size: 1em; border: 0px initial initial;\">\u6570\u503c\u7c7b\u578b\u4e4b\u95f4\u7684\u8f6c\u6362<\/h3>\n<p style=\"text-align: center;\"><img decoding=\"async\" class=\"rich_pages wxw-img lazyload\" data-src=\"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2023\/05\/20230528050511990.jpeg\" src=\"https:\/\/s.nmxc.ltd\/sakurairo_vision\/@2.6\/load_svg\/inload.svg\" onerror=\"imgError(this)\" data-galleryid=\"\" data-ratio=\"0.623898139079334\" data-s=\"300,640\" data-type=\"jpeg\" data-w=\"1021\" \/><noscript><img decoding=\"async\" class=\"rich_pages wxw-img\" src=\"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2023\/05\/20230528050511990.jpeg\" data-galleryid=\"\" data-ratio=\"0.623898139079334\" data-s=\"300,640\" data-type=\"jpeg\" data-w=\"1021\" \/><\/noscript><\/p>\n<h3 style=\"margin-top: 1.4285em; margin-bottom: 0.714285em; line-height: 1.42857em; font-family: Helvetica, Arial, 'Droid Sans', sans-serif; font-weight: bold; font-size: 1em; border: 0px initial initial;\">\u5f3a\u5236\u7c7b\u578b\u8f6c\u6362<\/h3>\n<section class=\"code-snippet__fix code-snippet__js\">\n<pre class=\"code-snippet__js\" data-lang=\"cs\"><code><span class=\"code-snippet_outer\"><span class=\"code-snippet__keyword\">double<\/span> x = <span class=\"code-snippet__number\">9.997<\/span>;<\/span><\/code><code><span class=\"code-snippet_outer\"><span class=\"code-snippet__keyword\">int<\/span> nx = (<span class=\"code-snippet__keyword\">int<\/span>) x;<\/span><\/code><\/pre>\n<\/section>\n<h3 style=\"margin-top: 1.4285em; margin-bottom: 0.714285em; line-height: 1.42857em; font-family: Helvetica, Arial, 'Droid Sans', sans-serif; font-weight: bold; font-size: 1em; border: 0px initial initial;\">\u8fd0\u7b97\u7b26\u4f18\u5148\u7ea7<\/h3>\n<p style=\"text-align: center;\"><img decoding=\"async\" class=\"rich_pages wxw-img lazyload\" data-src=\"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2023\/05\/20230528050513569.jpeg\" src=\"https:\/\/s.nmxc.ltd\/sakurairo_vision\/@2.6\/load_svg\/inload.svg\" onerror=\"imgError(this)\" data-galleryid=\"\" data-ratio=\"0.5069444444444444\" data-s=\"300,640\" data-type=\"jpeg\" data-w=\"1152\" \/><noscript><img decoding=\"async\" class=\"rich_pages wxw-img\" src=\"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2023\/05\/20230528050513569.jpeg\" data-galleryid=\"\" data-ratio=\"0.5069444444444444\" data-s=\"300,640\" data-type=\"jpeg\" data-w=\"1152\" \/><\/noscript><\/p>\n<h2 style=\"margin-top: 1.111em; margin-bottom: 0.5556em; font-family: Helvetica, Arial, 'Droid Sans', sans-serif; font-weight: bold; font-size: 1.286em; line-height: 1.111em; border: 0px initial initial;\">\u7c7b\u578b<\/h2>\n<h3 style=\"margin-top: 1.4285em; margin-bottom: 0.714285em; line-height: 1.42857em; font-family: Helvetica, Arial, 'Droid Sans', sans-serif; font-weight: bold; font-size: 1em; border: 0px initial initial;\">\u6570\u636e\u7c7b\u578b<\/h3>\n<section style=\"text-indent: 2em;\">\u6574\u578b<\/section>\n<section style=\"text-indent: 2em;\">\u6d6e\u70b9\u7c7b\u578b<\/section>\n<section style=\"text-indent: 2em;\">char\u7c7b\u578b<\/section>\n<section style=\"text-indent: 2em;\">boolean\u7c7b\u578b<\/section>\n<section style=\"text-indent: 2em;\">\u679a\u4e3e<\/section>\n<section class=\"code-snippet__fix code-snippet__js\">\n<pre class=\"code-snippet__js\" data-lang=\"swift\"><code><span class=\"code-snippet_outer\"><span class=\"code-snippet__class\"><span class=\"code-snippet__keyword\">enum<\/span> <span class=\"code-snippet__title\">Size<\/span> <\/span>{ <span class=\"code-snippet__type\">SMALL<\/span>, <span class=\"code-snippet__type\">MEDIUM<\/span>, <span class=\"code-snippet__type\">LARGE<\/span>, <span class=\"code-snippet__type\">EXTRA_LARGE<\/span> };<\/span><\/code><\/pre>\n<\/section>\n<p><span style=\"font-size: 14px;\">\u6ce8\uff1a\u82e5\u6574\u578b\u548c\u6d6e\u70b9\u578b\u7cbe\u5ea6\u4e0d\u80fd\u6ee1\u8db3\u8981\u6c42\uff0cBigInteger\u7c7b\u5b9e\u73b0\u4e86\u4efb\u610f\u7cbe\u5ea6\u7684\u6574\u6570\u8fd0\u7b97\uff0cBigDecimal\u7c7b\u5b9e\u73b0\u4e86\u4efb\u610f\u7cbe\u5ea6\u7684\u6d6e\u70b9\u6570\u8fd0\u7b97\u3002<\/span><\/p>\n<h3 style=\"margin-top: 1.4285em; margin-bottom: 0.714285em; line-height: 1.42857em; font-family: Helvetica, Arial, 'Droid Sans', sans-serif; font-weight: bold; font-size: 1em; border: 0px initial initial;\">\u5b57\u7b26\u4e32<\/h3>\n<section class=\"code-snippet__fix code-snippet__js\">\n<pre class=\"code-snippet__js\" data-lang=\"perl\"><code><span class=\"code-snippet_outer\">\/\/ \u5b9a\u4e49\u3001\u521d\u59cb\u5316<\/span><\/code><code><span class=\"code-snippet_outer\">String greeting = <span class=\"code-snippet__string\">\"Hello\"<\/span>;<\/span><\/code><code><span class=\"code-snippet_outer\"><span class=\"code-snippet__regexp\">\/\/<\/span> \u5b50\u4e32<\/span><\/code><code><span class=\"code-snippet_outer\">String <span class=\"code-snippet__keyword\">s<\/span> = greeting.substring(<span class=\"code-snippet__number\">0<\/span>, <span class=\"code-snippet__number\">3<\/span>)<\/span><\/code><code><span class=\"code-snippet_outer\">\/\/ \u62fc\u63a5\uff1a+\u53f7\u8fde\u63a5<span class=\"code-snippet__number\">2<\/span>\u4e2a\u5b57\u7b26\u4e32<\/span><\/code><code><span class=\"code-snippet_outer\">String expletive = <span class=\"code-snippet__string\">\"Expletive\"<\/span>;<\/span><\/code><code><span class=\"code-snippet_outer\">String PG13 = <span class=\"code-snippet__string\">\"deleted\"<\/span>;String message = expletive + PG13;<\/span><\/code><code><span class=\"code-snippet_outer\"><span class=\"code-snippet__regexp\">\/\/<\/span> \u62fc\u63a5\uff1a+\u53f7\u8fde\u63a5\u5b57\u7b26\u4e32\u4e0e\u975e\u5b57\u7b26\u4e32\u7684\u503c\uff0c\u540e\u8005\u88ab\u8f6c\u5316\u6210\u4e3a\u5b57\u7b26\u4e32<\/span><\/code><code><span class=\"code-snippet_outer\"><span class=\"code-snippet__keyword\">int<\/span> age = <span class=\"code-snippet__number\">13<\/span>;<\/span><\/code><code><span class=\"code-snippet_outer\">String rating = <span class=\"code-snippet__string\">\"PC\"<\/span> + age;<\/span><\/code><code><span class=\"code-snippet_outer\"><span class=\"code-snippet__regexp\">\/\/<\/span> \u5c06\u591a\u4e2a\u5b57\u7b26\u4e32\u7528\u4e00\u4e2a\u5b9a\u754c\u7b26\u5206\u9694\uff1a\u9759\u6001<span class=\"code-snippet__keyword\">join<\/span>()\u65b9\u6cd5<\/span><\/code><code><span class=\"code-snippet_outer\">String all = String.join(<span class=\"code-snippet__string\">\"\/\"<\/span>,<span class=\"code-snippet__string\">\"S\"<\/span>,<span class=\"code-snippet__string\">\"M\"<\/span>,<span class=\"code-snippet__string\">\"L\"<\/span>,<span class=\"code-snippet__string\">\"XL\"<\/span>);<\/span><\/code><\/pre>\n<\/section>\n<p><span style=\"display: none; line-height: 0px;\">\u200d<\/span><\/p>\n<p>String\u7c7b\u5bf9\u8c61\u4e3a\u4e0d\u53ef\u53d8\u5b57\u7b26\u4e32\uff0c\u6ca1\u6709\u63d0\u4f9b\u7528\u4e8e\u4fee\u6539\u5b57\u7b26\u4e32\u7684\u65b9\u6cd5\uff0c\u4f18\u70b9\u662f\uff1a\u7f16\u8bd1\u5668\u53ef\u8ba9\u5b57\u7b26\u4e32\u5171\u4eab\u3002<\/p>\n<section class=\"code-snippet__fix code-snippet__js\">\n<pre class=\"code-snippet__js\" data-lang=\"cs\"><code><span class=\"code-snippet_outer\"><span class=\"code-snippet__comment\">\/\/ \u68c0\u6d4b\u5b57\u7b26\u4e32\u662f\u5426\u76f8\u7b49<\/span><\/span><\/code><code><span class=\"code-snippet_outer\">s.<span class=\"code-snippet__keyword\">equals<\/span>(t)<\/span><\/code><code><span class=\"code-snippet_outer\"><span class=\"code-snippet__string\">\"Hello\"<\/span>.<span class=\"code-snippet__keyword\">equals<\/span>(greeting)<\/span><\/code><\/pre>\n<\/section>\n<blockquote class=\"js_blockquote_wrap\" data-type=\"2\" data-url=\"\" data-author-name=\"\" data-content-utf8-length=\"5\" data-source-title=\"https:\/\/docs.oracle.com\/javase\/8\/docs\/api\/\">\n<section class=\"js_blockquote_digest\">API\u6587\u6863<\/p>\n<\/section>\n<section class=\"blockquote_info js_blockquote_source\" data-json=\"%7B%22type%22%3A%22out%22%2C%22source%22%3A%22url%22%2C%22digest%22%3A%22%3Cp%3EAPI%E6%96%87%E6%A1%A3%3C%2Fp%3E%22%2C%22digestLen%22%3A5%2C%22text%22%3A%22%22%2C%22article%22%3A%7B%7D%2C%22hasReportOverSize%22%3Afalse%2C%22editorReportData%22%3A%5B%7B%22id%22%3A%22122333%22%2C%22key%22%3A%2276%22%2C%22len%22%3A1%7D%5D%2C%22from%22%3A%22https%3A%2F%2Fdocs.oracle.com%2Fjavase%2F8%2Fdocs%2Fapi%2F%22%7D\"><span class=\"blockquote_other\">https:\/\/docs.oracle.com\/javase\/8\/docs\/api\/<\/span><\/section>\n<\/blockquote>\n<h2 style=\"margin-top: 1.111em; margin-bottom: 0.5556em; font-family: Helvetica, Arial, 'Droid Sans', sans-serif; font-weight: bold; font-size: 1.286em; line-height: 1.111em; border: 0px initial initial;\">\u63a7\u5236\u6d41\u7a0b<\/h2>\n<h3 style=\"margin-top: 1.4285em; margin-bottom: 0.714285em; line-height: 1.42857em; font-family: Helvetica, Arial, 'Droid Sans', sans-serif; font-weight: bold; font-size: 1em; border: 0px initial initial;\">\u6761\u4ef6\u8bed\u53e5<\/h3>\n<p>Demo\uff1a<\/p>\n<p style=\"text-align: center;\"><img decoding=\"async\" class=\"rich_pages wxw-img lazyload\" data-src=\"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2023\/05\/20230528050514826.jpeg\" src=\"https:\/\/s.nmxc.ltd\/sakurairo_vision\/@2.6\/load_svg\/inload.svg\" onerror=\"imgError(this)\" data-galleryid=\"\" data-ratio=\"1.18475073313783\" data-s=\"300,640\" data-type=\"jpeg\" data-w=\"682\" \/><noscript><img decoding=\"async\" class=\"rich_pages wxw-img\" src=\"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2023\/05\/20230528050514826.jpeg\" data-galleryid=\"\" data-ratio=\"1.18475073313783\" data-s=\"300,640\" data-type=\"jpeg\" data-w=\"682\" \/><\/noscript><\/p>\n<section class=\"code-snippet__fix code-snippet__js\">\n<pre class=\"code-snippet__js\" data-lang=\"cs\"><code><span class=\"code-snippet_outer\"><span class=\"code-snippet__keyword\">if<\/span> (yourSales &gt;= <span class=\"code-snippet__number\">2<\/span> * target){\u00a0\u00a0 <\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 performance = <span class=\"code-snippet__string\">\"Excellent\"<\/span>;\u00a0\u00a0 <\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 bonus = <span class=\"code-snippet__number\">1000<\/span>;<\/span><\/code><code><span class=\"code-snippet_outer\">}<span class=\"code-snippet__keyword\">else<\/span> <span class=\"code-snippet__keyword\">if<\/span> (yourSales &gt;= <span class=\"code-snippet__number\">1.5<\/span> * target){\u00a0\u00a0 <\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 performance = <span class=\"code-snippet__string\">\"Fine\"<\/span>;\u00a0\u00a0 <\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 bonus = <span class=\"code-snippet__number\">500<\/span>;<\/span><\/code><code><span class=\"code-snippet_outer\">}<span class=\"code-snippet__keyword\">else<\/span> <span class=\"code-snippet__keyword\">if<\/span> (yourSales &gt;= target){\u00a0\u00a0 <\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 performance = <span class=\"code-snippet__string\">\"Satisfactory\"<\/span>;\u00a0\u00a0 <\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 bonus = <span class=\"code-snippet__number\">100<\/span>;<\/span><\/code><code><span class=\"code-snippet_outer\">}<span class=\"code-snippet__keyword\">else<\/span>{\u00a0\u00a0 <\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 System.<span class=\"code-snippet__keyword\">out<\/span>.println(<span class=\"code-snippet__string\">\"You're fired\"<\/span>);<\/span><\/code><code><span class=\"code-snippet_outer\">}<\/span><\/code><\/pre>\n<\/section>\n<h3 style=\"margin-top: 1.4285em; margin-bottom: 0.714285em; line-height: 1.42857em; font-family: Helvetica, Arial, 'Droid Sans', sans-serif; font-weight: bold; font-size: 1em; border: 0px initial initial;\">\u5faa\u73af<\/h3>\n<ul class=\"list-paddingleft-1\" style=\"margin-top: 0.2857em; margin-bottom: 0.714285em; margin-left: 2em; line-height: 1.42857em; list-style-position: outside; border: 0px initial initial;\">\n<li style=\"line-height: 1.42857em; border: 0px initial initial;\">while\u5faa\u73af<\/li>\n<\/ul>\n<p>\u683c\u5f0f\uff1a<\/p>\n<section class=\"code-snippet__fix code-snippet__js\">\n<pre class=\"code-snippet__js\" data-lang=\"javascript\"><code><span class=\"code-snippet_outer\"><span class=\"code-snippet__comment\">\/\/ \u5148\u68c0\u6d4b\u5faa\u73af\u6761\u4ef6<\/span><\/span><\/code><code><span class=\"code-snippet_outer\"><span class=\"code-snippet__keyword\">while<\/span> (condition) statement<\/span><\/code><code><span class=\"code-snippet_outer\"><span class=\"code-snippet__comment\">\/\/ \u81f3\u5c11\u6267\u884c\u4e00\u6b21\uff0c\u518d\u68c0\u6d4b\u5faa\u73af\u6761\u4ef6<\/span><\/span><\/code><code><span class=\"code-snippet_outer\"><span class=\"code-snippet__keyword\">do<\/span> statement <span class=\"code-snippet__keyword\">while<\/span> (condition);<\/span><\/code><\/pre>\n<\/section>\n<p>Demo\uff1a<\/p>\n<p style=\"text-align: center;\"><img decoding=\"async\" class=\"rich_pages wxw-img lazyload\" data-src=\"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2023\/05\/20230528050516212.jpeg\" src=\"https:\/\/s.nmxc.ltd\/sakurairo_vision\/@2.6\/load_svg\/inload.svg\" onerror=\"imgError(this)\" data-galleryid=\"\" data-ratio=\"2.01010101010101\" data-s=\"300,640\" data-type=\"jpeg\" data-w=\"594\" \/><noscript><img decoding=\"async\" class=\"rich_pages wxw-img\" src=\"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2023\/05\/20230528050516212.jpeg\" data-galleryid=\"\" data-ratio=\"2.01010101010101\" data-s=\"300,640\" data-type=\"jpeg\" data-w=\"594\" \/><\/noscript><\/p>\n<section class=\"code-snippet__fix code-snippet__js\">\n<pre class=\"code-snippet__js\" data-lang=\"xml\"><code><span class=\"code-snippet_outer\">while(balance <span class=\"code-snippet__tag\">&lt; <span class=\"code-snippet__attr\">goal<\/span>){\u00a0\u00a0 <\/span><\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 <span class=\"code-snippet__attr\">balance<\/span> += <span class=\"code-snippet__string\">payment;<\/span>\u00a0\u00a0 <\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 <span class=\"code-snippet__attr\">double<\/span> <span class=\"code-snippet__attr\">interest<\/span> = <span class=\"code-snippet__string\">balance<\/span> * <span class=\"code-snippet__attr\">interestRate<\/span> \/ <span class=\"code-snippet__attr\">100<\/span>;\u00a0\u00a0 <\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 <span class=\"code-snippet__attr\">balance<\/span> += <span class=\"code-snippet__string\">interest;<\/span>\u00a0\u00a0 <\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 <span class=\"code-snippet__attr\">years<\/span>++;<\/span><\/code><code><span class=\"code-snippet_outer\">}<\/span><\/code><\/pre>\n<\/section>\n<ul class=\"list-paddingleft-1\" style=\"margin-top: 0.2857em; margin-bottom: 0.714285em; margin-left: 2em; line-height: 1.42857em; list-style-position: outside; border: 0px initial initial;\">\n<li style=\"line-height: 1.42857em; border: 0px initial initial;\">for\u5faa\u73af<\/li>\n<\/ul>\n<p>\u683c\u5f0f\uff1a<\/p>\n<section class=\"code-snippet__fix code-snippet__js\">\n<pre class=\"code-snippet__js\" data-lang=\"sql\"><code><span class=\"code-snippet_outer\">\/\/ for\u5faa\u73af<\/span><\/code><code><span class=\"code-snippet_outer\">for(initialization; boolean_expression; <span class=\"code-snippet__keyword\">update<\/span>) <span class=\"code-snippet__keyword\">statement<\/span><\/span><\/code><code><span class=\"code-snippet_outer\">\/\/ foreach<\/span><\/code><code><span class=\"code-snippet_outer\"><span class=\"code-snippet__keyword\">for<\/span> (<span class=\"code-snippet__keyword\">variable<\/span> : collection) <span class=\"code-snippet__keyword\">statement<\/span><\/span><\/code><\/pre>\n<\/section>\n<p><span style=\"display: none; line-height: 0px;\">\u200d<\/span><\/p>\n<p>Demo\uff1a<\/p>\n<p style=\"text-align: center;\"><img decoding=\"async\" class=\"rich_pages wxw-img lazyload\" data-src=\"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2023\/05\/20230528050517594.jpeg\" src=\"https:\/\/s.nmxc.ltd\/sakurairo_vision\/@2.6\/load_svg\/inload.svg\" onerror=\"imgError(this)\" data-galleryid=\"\" data-ratio=\"1.9655765920826163\" data-s=\"300,640\" data-type=\"jpeg\" data-w=\"581\" \/><noscript><img decoding=\"async\" class=\"rich_pages wxw-img\" src=\"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2023\/05\/20230528050517594.jpeg\" data-galleryid=\"\" data-ratio=\"1.9655765920826163\" data-s=\"300,640\" data-type=\"jpeg\" data-w=\"581\" \/><\/noscript><\/p>\n<section class=\"code-snippet__fix code-snippet__js\">\n<pre class=\"code-snippet__js\" data-lang=\"cs\"><code><span class=\"code-snippet_outer\"><span class=\"code-snippet__keyword\">for<\/span> (<span class=\"code-snippet__keyword\">int<\/span> i = <span class=\"code-snippet__number\">1<\/span>; i &lt;= <span class=\"code-snippet__number\">10<\/span>; i++)<\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0\u00a0 System.<span class=\"code-snippet__keyword\">out<\/span>.println(i);<\/span><\/code><\/pre>\n<\/section>\n<p>Demo\uff1a\u904d\u5386\u6570\u7ec4<\/p>\n<section class=\"code-snippet__fix code-snippet__js\">\n<pre class=\"code-snippet__js\" data-lang=\"javascript\"><code><span class=\"code-snippet_outer\"><span class=\"code-snippet__built_in\">String<\/span>[] names = <span class=\"code-snippet__keyword\">new<\/span> <span class=\"code-snippet__built_in\">String<\/span>[<span class=\"code-snippet__number\">10<\/span>];<\/span><\/code><code><span class=\"code-snippet_outer\"><span class=\"code-snippet__keyword\">for<\/span> (int i = <span class=\"code-snippet__number\">0<\/span>; i &lt; <span class=\"code-snippet__number\">10<\/span>; i++) names[i]=<span class=\"code-snippet__string\">\"\"<\/span>;<\/span><\/code><\/pre>\n<\/section>\n<h2 style=\"margin-top: 1.111em; margin-bottom: 0.5556em; font-family: Helvetica, Arial, 'Droid Sans', sans-serif; font-weight: bold; font-size: 1.286em; line-height: 1.111em; border: 0px initial initial;\">\u5f02\u5e38<\/h2>\n<ul class=\"list-paddingleft-1\" style=\"margin-top: -0.428571em; margin-bottom: 0.714285em; margin-left: 2em; line-height: 1.42857em; list-style-position: outside; border: 0px initial initial;\">\n<li style=\"line-height: 1.42857em; border: 0px initial initial;\">Java\u7a0b\u5e8f\u8fd0\u884c\u671f\u95f4\u53ef\u80fd\u51fa\u73b0\u7684\u9519\u8bef\uff1a\n<ul class=\"list-paddingleft-1\" style=\"margin-top: 0.2857em; margin-bottom: 0.714285em; margin-left: 2em; line-height: 1.42857em; list-style-position: outside; list-style-type: square; border: 0px initial initial;\">\n<li style=\"line-height: 1.42857em; border: 0px initial initial;\">\u6587\u4ef6\u5305\u542b\u4e86\u9519\u8bef\u4fe1\u606f<\/li>\n<li style=\"line-height: 1.42857em; border: 0px initial initial;\">\u7f51\u7edc\u8fde\u63a5\u51fa\u73b0\u95ee\u9898<\/li>\n<li style=\"line-height: 1.42857em; border: 0px initial initial;\">\u65e0\u6548\u7684\u6570\u7ec4\u4e0b\u6807<\/li>\n<li style=\"line-height: 1.42857em; border: 0px initial initial;\">\u4f7f\u7528\u6ca1\u6709\u88ab\u8d4b\u503c\u7684\u5bf9\u8c61\u5f15\u7528<\/li>\n<li style=\"line-height: 1.42857em; border: 0px initial initial;\">\u2026\u2026<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<ul class=\"list-paddingleft-1\" style=\"margin-top: 0.2857em; margin-bottom: 0.714285em; margin-left: 2em; line-height: 1.42857em; list-style-position: outside; border: 0px initial initial;\">\n<li style=\"line-height: 1.42857em; border: 0px initial initial;\">\u5982\u679c\u51fa\u73b0\u9519\u8bef\u800c\u4f7f\u67d0\u4e9b\u64cd\u4f5c\u6ca1\u6709\u5b8c\u6210\uff0c\u7a0b\u5e8f\u5e94\u8be5\uff1a\n<ul class=\"list-paddingleft-1\" style=\"margin-top: 0.2857em; margin-bottom: 0.714285em; margin-left: 2em; line-height: 1.42857em; list-style-position: outside; list-style-type: square; border: 0px initial initial;\">\n<li style=\"line-height: 1.42857em; border: 0px initial initial;\">\u8fd4\u56de\u5230\u4e00\u79cd\u5b89\u5168\u72b6\u6001\uff0c\u5e76\u80fd\u591f\u8ba9\u7528\u6237\u6267\u884c\u4e00\u4e9b\u5176\u4ed6\u7684\u547d\u4ee4<\/li>\n<li style=\"line-height: 1.42857em; border: 0px initial initial;\">\u6216\u5141\u8bb8\u7528\u6237\u4fdd\u5b58\u6240\u6709\u64cd\u4f5c\u7684\u7ed3\u679c\uff0c\u5e76\u4ee5\u59a5\u5584\u7684\u65b9\u5f0f\u7ec8\u6b62\u7a0b\u5e8f<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>\u5f02\u5e38\u5904\u7406\u7684\u4efb\u52a1\uff1a\u5c06\u63a7\u5236\u6743\u4ece\u9519\u8bef\u4ea7\u751f\u7684\u5730\u65b9\u8f6c\u79fb\u7ed9\u80fd\u591f\u5904\u7406\u8fd9\u79cd\u60c5\u51b5\u7684\u9519\u8bef\u5904\u7406\u5668<\/p>\n<ul class=\"list-paddingleft-1\" style=\"margin-top: 0.2857em; margin-bottom: 0.714285em; margin-left: 2em; line-height: 1.42857em; list-style-position: outside; border: 0px initial initial;\">\n<li style=\"line-height: 1.42857em; border: 0px initial initial;\">Java\u4e2d\u7684\u5f02\u5e38\u5c42\u6b21\u7ed3\u6784<\/li>\n<\/ul>\n<p style=\"text-align: center;\"><img decoding=\"async\" class=\"rich_pages wxw-img lazyload\" data-src=\"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2023\/05\/20230528050519814.jpeg\" src=\"https:\/\/s.nmxc.ltd\/sakurairo_vision\/@2.6\/load_svg\/inload.svg\" onerror=\"imgError(this)\" data-galleryid=\"\" data-ratio=\"0.6472457627118644\" data-s=\"300,640\" data-type=\"jpeg\" data-w=\"944\" \/><noscript><img decoding=\"async\" class=\"rich_pages wxw-img\" src=\"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2023\/05\/20230528050519814.jpeg\" data-galleryid=\"\" data-ratio=\"0.6472457627118644\" data-s=\"300,640\" data-type=\"jpeg\" data-w=\"944\" \/><\/noscript><\/p>\n<h3 style=\"margin-top: 1.4285em; margin-bottom: 0.714285em; line-height: 1.42857em; font-family: Helvetica, Arial, 'Droid Sans', sans-serif; font-weight: bold; font-size: 1em; border: 0px initial initial;\">\u629b\u51fa\u5f02\u5e38<\/h3>\n<p>\u629b\u51fa\u4e00\u4e2a\u5df2\u7ecf\u5b58\u5728\u7684\u5f02\u5e38\u7c7b\uff1a<\/p>\n<section style=\"margin-bottom: 0.714285em; line-height: 1.42857em; text-indent: 2em; border: 0px initial initial;\">1\uff09\u627e\u5230\u4e00\u4e2a\u5408\u9002\u7684\u5f02\u5e38\u7c7b\u3002<\/section>\n<section style=\"margin-bottom: 0.714285em; line-height: 1.42857em; text-indent: 2em; border: 0px initial initial;\">2\uff09\u521b\u5efa\u8fd9\u4e2a\u7c7b\u7684\u4e00\u4e2a\u5bf9\u8c61\u3002<\/section>\n<section style=\"margin-bottom: 0.714285em; line-height: 1.42857em; text-indent: 2em; border: 0px initial initial;\">3\uff09\u5c06\u5bf9\u8c61\u629b\u51fa\u3002<\/section>\n<section class=\"code-snippet__fix code-snippet__js\">\n<pre class=\"code-snippet__js\" data-lang=\"ruby\"><code><span class=\"code-snippet_outer\">String readData(Scanner <span class=\"code-snippet__keyword\">in<\/span>) throws EOFException{\u00a0 <\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 ...\u00a0 <\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 <span class=\"code-snippet__keyword\">while<\/span> (. . .)\u00a0 {\u00a0 \u00a0\u00a0 <\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0 \u00a0 <span class=\"code-snippet__keyword\">if<\/span> (!<span class=\"code-snippet__keyword\">in<\/span>.hasNext())\u00a0 { <span class=\"code-snippet__regexp\">\/\/<\/span> EOF encountered\u00a0 \u00a0 <\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0 \u00a0 \u00a0 <span class=\"code-snippet__keyword\">if<\/span> (n &lt; len)\u00a0\u00a0 <\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 throw new EOFException();<\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0 \u00a0 }\u00a0 \u00a0\u00a0 <\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 ...\u00a0 <\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 }\u00a0 <\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 <span class=\"code-snippet__keyword\">return<\/span> s;<\/span><\/code><code><span class=\"code-snippet_outer\">}<\/span><\/code><\/pre>\n<\/section>\n<p><span style=\"display: none; line-height: 0px;\">\u200d<\/span><\/p>\n<h3 style=\"margin-top: 1.4285em; margin-bottom: 0.714285em; line-height: 1.42857em; font-family: Helvetica, Arial, 'Droid Sans', sans-serif; font-weight: bold; font-size: 1em; border: 0px initial initial;\">\u6355\u83b7\u5f02\u5e38<\/h3>\n<p>\u6355\u83b7\u5f02\u5e38\uff1a<\/p>\n<section class=\"code-snippet__fix code-snippet__js\">\n<pre class=\"code-snippet__js\" data-lang=\"typescript\"><code><span class=\"code-snippet_outer\"><span class=\"code-snippet__keyword\">try<\/span>{\u00a0\u00a0 <\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0\u00a0 code<\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0\u00a0 more code<\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0\u00a0 more code<\/span><\/code><code><span class=\"code-snippet_outer\">}<span class=\"code-snippet__keyword\">catch<\/span> (ExceptionType e){\u00a0\u00a0 <\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 handler <span class=\"code-snippet__keyword\">for<\/span> <span class=\"code-snippet__keyword\">this<\/span> <span class=\"code-snippet__keyword\">type<\/span><\/span><\/code><code><span class=\"code-snippet_outer\">}<\/span><\/code><\/pre>\n<\/section>\n<p>\u6355\u83b7\u591a\u4e2a\u5f02\u5e38\uff1a<\/p>\n<section class=\"code-snippet__fix code-snippet__js\">\n<pre class=\"code-snippet__js\" data-lang=\"javascript\"><code><span class=\"code-snippet_outer\"><span class=\"code-snippet__keyword\">try<\/span>{\u00a0\u00a0 <\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0 code that might <span class=\"code-snippet__keyword\">throw<\/span> exceptions<\/span><\/code><code><span class=\"code-snippet_outer\">}<span class=\"code-snippet__keyword\">catch<\/span> (FileNotFoundException e){\u00a0\u00a0 <\/span><\/code><code><span class=\"code-snippet_outer\">  emergency action <span class=\"code-snippet__keyword\">for<\/span> missing files<\/span><\/code><code><span class=\"code-snippet_outer\">}<span class=\"code-snippet__keyword\">catch<\/span> (UnknownHostException e){\u00a0\u00a0 <\/span><\/code><code><span class=\"code-snippet_outer\">  emergency action <span class=\"code-snippet__keyword\">for<\/span> unknown hosts<\/span><\/code><code><span class=\"code-snippet_outer\">}<span class=\"code-snippet__keyword\">catch<\/span> (IOException e){\u00a0\u00a0 <\/span><\/code><code><span class=\"code-snippet_outer\">  emergency action <span class=\"code-snippet__keyword\">for<\/span> all other I\/O problems<\/span><\/code><code><span class=\"code-snippet_outer\">}<\/span><\/code><\/pre>\n<\/section>\n<p>\u6355\u83b7\u540e\u518d\u6b21\u629b\u51fa\uff1a\u6539\u53d8\u5f02\u5e38\u7c7b\u578b<\/p>\n<section class=\"code-snippet__fix code-snippet__js\">\n<pre class=\"code-snippet__js\" data-lang=\"javascript\"><code><span class=\"code-snippet_outer\">{\u00a0\u00a0 <\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 access the database<\/span><\/code><code><span class=\"code-snippet_outer\">}<span class=\"code-snippet__keyword\">catch<\/span> (SQLException e){\u00a0 <\/span><\/code><code><span class=\"code-snippet_outer\"> <span class=\"code-snippet__keyword\">throw<\/span> <span class=\"code-snippet__keyword\">new<\/span> ServletException (<span class=\"code-snippet__string\">\"database error: \"<\/span> + e.getMessage());<\/span><\/code><code><span class=\"code-snippet_outer\">}<\/span><\/code><\/pre>\n<\/section>\n<h2 style=\"margin-top: 1.111em; margin-bottom: 0.5556em; font-family: Helvetica, Arial, 'Droid Sans', sans-serif; font-weight: bold; font-size: 1.286em; line-height: 1.111em; border: 0px initial initial;\">\u65ad\u8a00<\/h2>\n<p>\u4f5c\u7528\uff1a\u5bf9\u6761\u4ef6\u8fdb\u884c\u68c0\u6d4b\uff0c\u5982\u679c\u7ed3\u679c\u4e3afalse\uff0c\u629b\u51faAssertionError\u5f02\u5e38\u3002\u65ad\u8a00\u53ea\u5e94\u8be5\u7528\u4e8e\u5728\u6d4b\u8bd5\u9636\u6bb5\u786e\u5b9a\u7a0b\u5e8f\u5185\u90e8\u7684\u9519\u8bef\u4f4d\u7f6e\u3002<\/p>\n<p>\u683c\u5f0f\uff1a<\/p>\n<section class=\"code-snippet__fix code-snippet__js\">\n<pre class=\"code-snippet__js\" data-lang=\"java\"><code><span class=\"code-snippet_outer\"><span class=\"code-snippet__keyword\">assert<\/span>\u6761\u4ef6\uff1b<\/span><\/code><code><span class=\"code-snippet_outer\"><span class=\"code-snippet__keyword\">assert<\/span>\u6761\u4ef6\uff1a\u8868\u8fbe\u5f0f\uff1b<\/span><\/code><\/pre>\n<\/section>\n<h2 style=\"margin-top: 1.111em; margin-bottom: 0.5556em; font-family: Helvetica, Arial, 'Droid Sans', sans-serif; font-weight: bold; font-size: 1.286em; line-height: 1.111em; border: 0px initial initial;\">\u6ce8\u89e3<\/h2>\n<ul class=\"list-paddingleft-1\" style=\"margin-top: -0.428571em; margin-bottom: 0.714285em; margin-left: 2em; line-height: 1.42857em; list-style-position: outside; border: 0px initial initial;\">\n<li style=\"line-height: 1.42857em; border: 0px initial initial;\">\u6ce8\u89e3\u7c7b\u578b\n<ul class=\"list-paddingleft-1\" style=\"margin-top: 0.2857em; margin-bottom: 0.714285em; margin-left: 2em; line-height: 1.42857em; list-style-position: outside; list-style-type: square; border: 0px initial initial;\">\n<li style=\"line-height: 1.42857em; border: 0px initial initial;\">\u5185\u5efa\u6ce8\u89e3\n<ul class=\"list-paddingleft-1\" style=\"margin-top: 0.2857em; margin-bottom: 0.714285em; margin-left: 2em; line-height: 1.42857em; list-style-position: outside; border: 0px initial initial;\">\n<li style=\"line-height: 1.42857em; border: 0px initial initial;\">@Override\u6ce8\u89e3\uff1a\u8868\u793a\u8be5\u65b9\u6cd5\u662f\u91cd\u5199\u7236\u7c7b\u7684\u67d0\u65b9\u6cd5<\/li>\n<li style=\"line-height: 1.42857em; border: 0px initial initial;\">@Deprecated\u6ce8\u89e3\uff1a\u8868\u793a\u5df2\u8fc7\u65f6<\/li>\n<li style=\"line-height: 1.42857em; border: 0px initial initial;\">@SuppressWarnings\u6ce8\u89e3\uff1a\u963b\u6b62\u7f16\u8bd1\u5668\u8b66\u544a<\/li>\n<\/ul>\n<\/li>\n<li style=\"line-height: 1.42857em; border: 0px initial initial;\">\u5143\u6ce8\u89e3\n<ul class=\"list-paddingleft-1\" style=\"margin-top: 0.2857em; margin-bottom: 0.714285em; margin-left: 2em; line-height: 1.42857em; list-style-position: outside; border: 0px initial initial;\">\n<li style=\"line-height: 1.42857em; border: 0px initial initial;\">@Target\u6ce8\u89e3\uff1a\u6307\u5b9a\u88ab\u5176\u4fee\u9970\u7684\u6ce8\u89e3\u80fd\u7528\u4e8e\u4fee\u9970\u54ea\u4e9b\u7a0b\u5e8f\u5143\u7d20<\/li>\n<li style=\"line-height: 1.42857em; border: 0px initial initial;\">@Retention\u6ce8\u89e3\uff1a\u63cf\u8ff0\u4e86\u88ab\u5176\u4fee\u9970\u7684\u6ce8\u89e3\u662f\u5426\u88ab\u7f16\u8bd1\u5668\u4e22\u5f03\u6216\u8005\u4fdd\u7559\u5728class\u6587\u4ef6\u4e2d<\/li>\n<li style=\"line-height: 1.42857em; border: 0px initial initial;\">@Documented\u6ce8\u89e3\uff1a\u6307\u5b9a\u88ab\u5176\u4fee\u9970\u7684\u6ce8\u89e3\u5c06\u88abJavaDoc\u5de5\u5177\u63d0\u53d6\u6210\u6587\u6863<\/li>\n<li style=\"line-height: 1.42857em; border: 0px initial initial;\">@Inherited\u6ce8\u89e3\uff1a\u6307\u5b9a\u88ab\u5176\u4fee\u9970\u7684\u6ce8\u89e3\u5c06\u5177\u6709\u7ee7\u627f\u6027<\/li>\n<\/ul>\n<\/li>\n<li style=\"line-height: 1.42857em; border: 0px initial initial;\">\u81ea\u5b9a\u4e49\u6ce8\u89e3\n<ul class=\"list-paddingleft-1\" style=\"margin-top: 0.2857em; margin-bottom: 0.714285em; margin-left: 2em; line-height: 1.42857em; list-style-position: outside; border: 0px initial initial;\">\n<li style=\"line-height: 1.42857em; border: 0px initial initial;\">\u5b9a\u4e49\uff1apublic @interface AnnotationTest{}<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p style=\"margin-bottom: 0.714285em; line-height: 1.42857em; border: 0px initial initial;\">\n<ul class=\"list-paddingleft-1\" style=\"margin-top: -0.428571em; margin-bottom: 0.714285em; margin-left: 2em; line-height: 1.42857em; list-style-position: outside; border: 0px initial initial;\">\n<li style=\"line-height: 1.42857em; border: 0px initial initial;\">\u8bfb\u53d6\u6ce8\u89e3\u4fe1\u606f<\/li>\n<\/ul>\n<section style=\"line-height: normal;\">java.lang.reflect\u5305\u63d0\u4f9b\u4e86\u5bf9\u8bfb\u53d6\u8fd0\u884c\u65f6\u6ce8\u89e3\u7684\u652f\u6301\uff0c\u901a\u8fc7\u53cd\u5c04\u83b7\u53d6AnnotatedElement\u5bf9\u8c61\uff0c\u8c03\u7528\u4ee5\u4e0b3\u4e2a\u65b9\u6cd5\u53ef\u8bbf\u95ee\u6ce8\u89e3\u4fe1\u606f\uff1a<\/section>\n<section style=\"line-height: normal;\">getAnnotation()\uff1a\u83b7\u53d6\u6307\u5b9a\u7c7b\u578b\u7684\u6ce8\u89e3<\/section>\n<section style=\"line-height: normal;\">getAnnotations()\uff1a\u83b7\u53d6\u6240\u6709\u6ce8\u89e3<\/section>\n<section style=\"line-height: normal;\">isAnnotationPresent()\uff1a\u90a3\u6bb5\u662f\u5426\u5305\u542b\u6307\u5b9a\u7c7b\u578b\u7684\u6ce8\u89e3<\/section>\n<ul class=\"list-paddingleft-1\" style=\"list-style-type: disc;\">\n<li>\n<section style=\"line-height: normal;\"><span style=\"font-family: mp-quote, -apple-system-font, BlinkMacSystemFont, 'Helvetica Neue', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei UI', 'Microsoft YaHei', Arial, sans-serif;\">D<\/span><span style=\"font-family: mp-quote, -apple-system-font, BlinkMacSystemFont, 'Helvetica Neue', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei UI', 'Microsoft YaHei', Arial, sans-serif;\">em<\/span><span style=\"font-family: mp-quote, -apple-system-font, BlinkMacSystemFont, 'Helvetica Neue', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei UI', 'Microsoft YaHei', Arial, sans-serif;\">o\uff1a<\/span><\/section>\n<\/li>\n<\/ul>\n<section class=\"code-snippet__fix code-snippet__js\">\n<pre class=\"code-snippet__js\" data-lang=\"cs\"><code><span class=\"code-snippet_outer\"><span class=\"code-snippet__keyword\">public<\/span> <span class=\"code-snippet__keyword\">class<\/span>\u00a0 <span class=\"code-snippet__title\">MyAnnotation<\/span>{<\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0\u00a0 <span class=\"code-snippet__comment\">\/\/\u83b7\u53d6MyAnnotation\u7c7b\u7684getObjectInfo()\u65b9\u6cd5\u7684\u6240\u6709\u6ce8\u89e3<\/span><\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0\u00a0 Annotation[] arr=Class.forName(<span class=\"code-snippet__string\">\"MyAnnotation\"<\/span>).getMethod(<span class=\"code-snippet__string\">\"getObjectInfo\"<\/span>). getAnnotations();<\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0\u00a0 <span class=\"code-snippet__comment\">\/\/\u904d\u5386\u6240\u6709\u6ce8\u89e3<\/span><\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0\u00a0 <span class=\"code-snippet__keyword\">for<\/span>(Annotation an:arr){<\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0 \u00a0 \u00a0\u00a0 System.<span class=\"code-snippet__keyword\">out<\/span>.println(an);<\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0\u00a0 }<\/span><\/code><code><span class=\"code-snippet_outer\">}<\/span><\/code><\/pre>\n<\/section>\n<h1 style=\"margin-top: 0.9523em; margin-bottom: 0.4761em; font-family: Helvetica, Arial, 'Droid Sans', sans-serif; font-weight: bold; font-size: 1.5em; line-height: 0.9523em; border: 0px initial initial;\">\u5e38\u7528\u64cd\u4f5c<\/h1>\n<p>\u6570\u636e\u9a71\u52a8\u6d4b\u8bd5\uff0c\u6bcf\u79cd\u6570\u636e\u6e90\u9002\u5408\u7684\u573a\u666f\uff1a<\/p>\n<p style=\"margin-bottom: 0.714285em; line-height: 1.42857em; border: 0px initial initial;\">1\uff09\u6d4b\u8bd5\u6570\u636e\u7684\u5b58\u653e\uff1a\u63a8\u8350\u4f7f\u7528CSV\u6216Excel\u4f5c\u4e3a\u6570\u636e\u6e90\u3002<\/p>\n<p style=\"margin-bottom: 0.714285em; line-height: 1.42857em; border: 0px initial initial;\">2\uff09\u914d\u7f6e\u6570\u636e\u7684\u5b58\u653e\uff1a\u63a8\u8350\u4f7f\u7528Properties\u6216YAML\u4f5c\u4e3a\u6570\u636e\u6e90\u3002<\/p>\n<p style=\"margin-bottom: 0.714285em; line-height: 1.42857em; border: 0px initial initial;\">3\uff09\u8de8\u9879\u76ee\u5171\u4eab\u6d4b\u8bd5\u6570\u636e\u6216\u914d\u7f6e\u6570\u636e\uff1a\u63a8\u8350\u4f7f\u7528\u6570\u636e\u5e93\u4f5c\u4e3a\u6570\u636e\u6e90\u3002<\/p>\n<h2 style=\"margin-top: 1.111em; margin-bottom: 0.5556em; font-family: Helvetica, Arial, 'Droid Sans', sans-serif; font-weight: bold; font-size: 1.286em; line-height: 1.111em; border: 0px initial initial;\">JUnit\u53c2\u6570\u5316\u6d4b\u8bd5<\/h2>\n<ul class=\"list-paddingleft-1\" style=\"list-style-type: disc;\">\n<li>\n<h3 style=\"margin-top: 1.4285em; margin-bottom: 0.714285em; line-height: 1.42857em; font-family: Helvetica, Arial, 'Droid Sans', sans-serif; font-weight: bold; font-size: 1em; border: 0px initial initial;\">Demo:<\/h3>\n<\/li>\n<\/ul>\n<p>pom.xml:<\/p>\n<section class=\"code-snippet__fix code-snippet__js\">\n<pre class=\"code-snippet__js\" data-lang=\"xml\"><code><span class=\"code-snippet_outer\">\u00a0 \u00a0 \u00a0 \u00a0 <span class=\"code-snippet__tag\">&lt;<span class=\"code-snippet__name\">dependency<\/span>&gt;<\/span><\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 <span class=\"code-snippet__tag\">&lt;<span class=\"code-snippet__name\">groupId<\/span>&gt;<\/span>org.junit.jupiter<span class=\"code-snippet__tag\">&lt;\/<span class=\"code-snippet__name\">groupId<\/span>&gt;<\/span><\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 <span class=\"code-snippet__tag\">&lt;<span class=\"code-snippet__name\">artifactId<\/span>&gt;<\/span>junit-jupiter-engine<span class=\"code-snippet__tag\">&lt;\/<span class=\"code-snippet__name\">artifactId<\/span>&gt;<\/span><\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 <span class=\"code-snippet__tag\">&lt;<span class=\"code-snippet__name\">version<\/span>&gt;<\/span>5.6.0<span class=\"code-snippet__tag\">&lt;\/<span class=\"code-snippet__name\">version<\/span>&gt;<\/span><\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0 \u00a0 \u00a0 <span class=\"code-snippet__tag\">&lt;\/<span class=\"code-snippet__name\">dependency<\/span>&gt;<\/span><\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0 \u00a0 \u00a0 <span class=\"code-snippet__tag\">&lt;<span class=\"code-snippet__name\">dependency<\/span>&gt;<\/span><\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 <span class=\"code-snippet__tag\">&lt;<span class=\"code-snippet__name\">groupId<\/span>&gt;<\/span>org.junit.jupiter<span class=\"code-snippet__tag\">&lt;\/<span class=\"code-snippet__name\">groupId<\/span>&gt;<\/span><\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 <span class=\"code-snippet__tag\">&lt;<span class=\"code-snippet__name\">artifactId<\/span>&gt;<\/span>junit-jupiter-params<span class=\"code-snippet__tag\">&lt;\/<span class=\"code-snippet__name\">artifactId<\/span>&gt;<\/span><\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 <span class=\"code-snippet__tag\">&lt;<span class=\"code-snippet__name\">version<\/span>&gt;<\/span>5.6.0<span class=\"code-snippet__tag\">&lt;\/<span class=\"code-snippet__name\">version<\/span>&gt;<\/span><\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0 \u00a0 \u00a0 <span class=\"code-snippet__tag\">&lt;\/<span class=\"code-snippet__name\">dependency<\/span>&gt;<\/span><\/span><\/code><\/pre>\n<\/section>\n<p>\u4ee3\u7801:<\/p>\n<section class=\"code-snippet__fix code-snippet__js\">\n<pre class=\"code-snippet__js\" data-lang=\"java\"><code><span class=\"code-snippet_outer\">\n<\/span><\/code><code><span class=\"code-snippet_outer\"><span class=\"code-snippet__keyword\">import<\/span> org.junit.jupiter.params.ParameterizedTest;<\/span><\/code><code><span class=\"code-snippet_outer\"><span class=\"code-snippet__keyword\">import<\/span> org.junit.jupiter.params.provider.*;<\/span><\/code><code><span class=\"code-snippet_outer\"><span class=\"code-snippet__keyword\">import<\/span> org.openqa.selenium.chrome.ChromeDriver;<\/span><\/code><code><span class=\"code-snippet_outer\">\n<\/span><\/code><code><span class=\"code-snippet_outer\"><span class=\"code-snippet__keyword\">import<\/span> java.util.concurrent.TimeUnit;<\/span><\/code><code><span class=\"code-snippet_outer\"><span class=\"code-snippet__keyword\">import<\/span> java.util.stream.Stream;<\/span><\/code><code><span class=\"code-snippet_outer\">\n<\/span><\/code><code><span class=\"code-snippet_outer\"><span class=\"code-snippet__keyword\">import<\/span> <span class=\"code-snippet__keyword\">static<\/span> org.junit.jupiter.api.Assertions.assertEquals;<\/span><\/code><code><span class=\"code-snippet_outer\"><span class=\"code-snippet__keyword\">import<\/span> <span class=\"code-snippet__keyword\">static<\/span> org.junit.jupiter.api.Assertions.assertNotNull;<\/span><\/code><code><span class=\"code-snippet_outer\">\n<\/span><\/code><code><span class=\"code-snippet_outer\"><span class=\"code-snippet__keyword\">public<\/span> <span class=\"code-snippet__class\"><span class=\"code-snippet__keyword\">class<\/span> <span class=\"code-snippet__title\">LoginForJUnit<\/span> <\/span>{<\/span><\/code><code><span class=\"code-snippet_outer\">\n<\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0 <span class=\"code-snippet__meta\">@ParameterizedTest<\/span><\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0 <span class=\"code-snippet__meta\">@ArgumentsSources<\/span>(<span class=\"code-snippet__meta\">@ArgumentsSource<\/span>(ArgumentsProviderClass.class))<\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0 <span class=\"code-snippet__function\"><span class=\"code-snippet__keyword\">void<\/span> <span class=\"code-snippet__title\">testCase_001<\/span><span class=\"code-snippet__params\">(String url, String username, String password)<\/span> <span class=\"code-snippet__keyword\">throws<\/span> InterruptedException <\/span>{<\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0 \u00a0 \u00a0 ChromeDriver driver = <span class=\"code-snippet__keyword\">new<\/span> ChromeDriver();<\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0 \u00a0 \u00a0 driver.get(url);<\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0 \u00a0 \u00a0 driver.findElementByCssSelector(<span class=\"code-snippet__string\">\"input[type='text']\"<\/span>).sendKeys(username);<\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0 \u00a0 \u00a0 driver.findElementByCssSelector(<span class=\"code-snippet__string\">\"input[type='password']\"<\/span>).sendKeys(password);<\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0 \u00a0 \u00a0 driver.findElementByClassName(<span class=\"code-snippet__string\">\"el-button\"<\/span>).click();<\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0 \u00a0 \u00a0 TimeUnit.SECONDS.sleep(<span class=\"code-snippet__number\">3<\/span>);<\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0 \u00a0 \u00a0 assertEquals(username, driver.findElementByCssSelector(<span class=\"code-snippet__string\">\"#nav &gt; div:nth-child(2) &gt; span\"<\/span>).getText());<\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0 \u00a0 \u00a0 driver.quit();<\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0 }<\/span><\/code><code><span class=\"code-snippet_outer\">\n<\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0 <span class=\"code-snippet__function\"><span class=\"code-snippet__keyword\">static<\/span> Stream&lt;Arguments&gt; <span class=\"code-snippet__title\">methodSource<\/span><span class=\"code-snippet__params\">()<\/span> <\/span>{<\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0 \u00a0 \u00a0 <span class=\"code-snippet__keyword\">return<\/span> Stream.of(<\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 Arguments.of(<span class=\"code-snippet__string\">\"http:\/\/localhost:9002\/login\"<\/span>, <span class=\"code-snippet__string\">\"zhangsan\"<\/span>, <span class=\"code-snippet__string\">\"zhangsan123456\"<\/span>),<\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 Arguments.of(<span class=\"code-snippet__string\">\"http:\/\/localhost:9002\/login\"<\/span>, <span class=\"code-snippet__string\">\"lisi\"<\/span>, <span class=\"code-snippet__string\">\"lisi123456\"<\/span>)<\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0 \u00a0 \u00a0 );<\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0 }<\/span><\/code><code><span class=\"code-snippet_outer\">\n<\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0 <span class=\"code-snippet__meta\">@ParameterizedTest<\/span><\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0 <span class=\"code-snippet__meta\">@EnumSource<\/span>(value = Role.class, names = {<span class=\"code-snippet__string\">\"GUEST\"<\/span>, <span class=\"code-snippet__string\">\"USER\"<\/span>})<\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0 <span class=\"code-snippet__function\"><span class=\"code-snippet__keyword\">void<\/span> <span class=\"code-snippet__title\">testCase_002<\/span><span class=\"code-snippet__params\">(Role role)<\/span> <\/span>{<\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0 \u00a0 \u00a0 assertNotNull(role);<\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0 }<\/span><\/code><code><span class=\"code-snippet_outer\">\n<\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0 <span class=\"code-snippet__keyword\">enum<\/span> Role {GUEST, USER, ADMIN}<\/span><\/code><code><span class=\"code-snippet_outer\">\n<\/span><\/code><code><span class=\"code-snippet_outer\">}<\/span><\/code><\/pre>\n<\/section>\n<h2 style=\"margin-top: 1.111em; margin-bottom: 0.5556em; font-family: Helvetica, Arial, 'Droid Sans', sans-serif; font-weight: bold; font-size: 1.286em; line-height: 1.111em; border: 0px initial initial;\">\u6587\u4ef6\u8bfb\u5199<\/h2>\n<h3 style=\"margin-top: 1.4285em; margin-bottom: 0.714285em; line-height: 1.42857em; font-family: Helvetica, Arial, 'Droid Sans', sans-serif; font-weight: bold; font-size: 1em; border: 0px initial initial;\">Demo\uff1a\u4f7f\u7528CSV\u6587\u4ef6\u8fdb\u884c\u6570\u636e\u9a71\u52a8\u6d4b\u8bd5<\/h3>\n<blockquote class=\"js_blockquote_wrap\" data-type=\"2\" data-url=\"\" data-author-name=\"\" data-content-utf8-length=\"44\" data-source-title=\"https:\/\/github.com\/xiaoliuzi20180524\/selenium-webdriver\/tree\/master\/chapter9\/src\/main\/java\/com\/data\/demo\">\n<section class=\"js_blockquote_digest\">Github:\u00a0xiaoliuzi20180524\/selenium-webdriver<\/p>\n<\/section>\n<section class=\"blockquote_info js_blockquote_source\" data-json=\"%7B%22type%22%3A%22out%22%2C%22source%22%3A%22url%22%2C%22digest%22%3A%22%3Cp%3EGithub%3A%26nbsp%3Bxiaoliuzi20180524%2Fselenium-webdriver%3C%2Fp%3E%22%2C%22digestLen%22%3A44%2C%22text%22%3A%22%22%2C%22article%22%3A%7B%7D%2C%22hasReportOverSize%22%3Afalse%2C%22editorReportData%22%3A%5B%7B%22id%22%3A%22122333%22%2C%22key%22%3A%2276%22%2C%22len%22%3A1%7D%5D%2C%22from%22%3A%22https%3A%2F%2Fgithub.com%2Fxiaoliuzi20180524%2Fselenium-webdriver%2Ftree%2Fmaster%2Fchapter9%2Fsrc%2Fmain%2Fjava%2Fcom%2Fdata%2Fdemo%22%7D\"><span class=\"blockquote_other\">https:\/\/github.com\/xiaoliuzi20180524\/selenium-webdriver\/tree\/master\/chapter9\/src\/main\/java\/com\/data\/demo<\/span><\/section>\n<\/blockquote>\n<section class=\"code-snippet__fix code-snippet__js\">\n<pre class=\"code-snippet__js\" data-lang=\"javascript\"><code><span class=\"code-snippet_outer\"><span class=\"code-snippet__keyword\">import<\/span> org.testng.annotations.DataProvider;<\/span><\/code><code><span class=\"code-snippet_outer\"><span class=\"code-snippet__keyword\">import<\/span> org.testng.annotations.Test;<\/span><\/code><code><span class=\"code-snippet_outer\">\n<\/span><\/code><code><span class=\"code-snippet_outer\"><span class=\"code-snippet__keyword\">import<\/span> java.io.BufferedReader;<\/span><\/code><code><span class=\"code-snippet_outer\"><span class=\"code-snippet__keyword\">import<\/span> java.io.FileInputStream;<\/span><\/code><code><span class=\"code-snippet_outer\"><span class=\"code-snippet__keyword\">import<\/span> java.io.InputStreamReader;<\/span><\/code><code><span class=\"code-snippet_outer\"><span class=\"code-snippet__keyword\">import<\/span> java.util.ArrayList;<\/span><\/code><code><span class=\"code-snippet_outer\"><span class=\"code-snippet__keyword\">import<\/span> java.util.HashMap;<\/span><\/code><code><span class=\"code-snippet_outer\"><span class=\"code-snippet__keyword\">import<\/span> java.util.List;<\/span><\/code><code><span class=\"code-snippet_outer\"><span class=\"code-snippet__keyword\">import<\/span> java.util.Map;<\/span><\/code><code><span class=\"code-snippet_outer\"><span class=\"code-snippet__comment\">\/**<\/span><\/span><\/code><code><span class=\"code-snippet_outer\"><span class=\"code-snippet__comment\"> * @description \u5229\u7528CSV\u6587\u4ef6\u505a\u6570\u636e\u9a71\u52a8\u6d4b\u8bd5<\/span><\/span><\/code><code><span class=\"code-snippet_outer\"><span class=\"code-snippet__comment\"> * @author rongrong<\/span><\/span><\/code><code><span class=\"code-snippet_outer\"><span class=\"code-snippet__comment\"> * @version 1.0<\/span><\/span><\/code><code><span class=\"code-snippet_outer\"><span class=\"code-snippet__comment\"> * @date 2020\/6\/27 13:22<\/span><\/span><\/code><code><span class=\"code-snippet_outer\"><span class=\"code-snippet__comment\"> *\/<\/span><\/span><\/code><code><span class=\"code-snippet_outer\">public <span class=\"code-snippet__class\"><span class=\"code-snippet__keyword\">class<\/span> <span class=\"code-snippet__title\">TestCSVData<\/span> <\/span>{<\/span><\/code><code><span class=\"code-snippet_outer\">\n<\/span><\/code><code><span class=\"code-snippet_outer\">\n<\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0 <span class=\"code-snippet__comment\">\/**<\/span><\/span><\/code><code><span class=\"code-snippet_outer\"><span class=\"code-snippet__comment\">\u00a0 \u00a0\u00a0 * \u8bfb\u53d6csv\u6587\u4ef6<\/span><\/span><\/code><code><span class=\"code-snippet_outer\"><span class=\"code-snippet__comment\">\u00a0 \u00a0\u00a0 *<\/span><\/span><\/code><code><span class=\"code-snippet_outer\"><span class=\"code-snippet__comment\">\u00a0 \u00a0\u00a0 * @param filePath<\/span><\/span><\/code><code><span class=\"code-snippet_outer\"><span class=\"code-snippet__comment\">\u00a0 \u00a0\u00a0 * @return\u8fd4\u56delist\u96c6\u5408<\/span><\/span><\/code><code><span class=\"code-snippet_outer\"><span class=\"code-snippet__comment\">\u00a0 \u00a0\u00a0 *\/<\/span><\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0 public List&lt;<span class=\"code-snippet__built_in\">Map<\/span>&lt;<span class=\"code-snippet__built_in\">String<\/span>, <span class=\"code-snippet__built_in\">String<\/span>&gt;&gt; getCSVData(<span class=\"code-snippet__built_in\">String<\/span> filePath) {<\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0 \u00a0 \u00a0 List&lt;<span class=\"code-snippet__built_in\">Map<\/span>&lt;<span class=\"code-snippet__built_in\">String<\/span>, <span class=\"code-snippet__built_in\">String<\/span>&gt;&gt; list = <span class=\"code-snippet__keyword\">new<\/span> ArrayList&lt;<span class=\"code-snippet__built_in\">Map<\/span>&lt;<span class=\"code-snippet__built_in\">String<\/span>, <span class=\"code-snippet__built_in\">String<\/span>&gt;&gt;();<\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0 \u00a0 \u00a0 ;<\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0 \u00a0 \u00a0 FileInputStream fileInputStream = <span class=\"code-snippet__literal\">null<\/span>;<\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0 \u00a0 \u00a0 <span class=\"code-snippet__keyword\">try<\/span> {<\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 fileInputStream = <span class=\"code-snippet__keyword\">new<\/span> FileInputStream(filePath);<\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 InputStreamReader inputStreamReader = <span class=\"code-snippet__keyword\">new<\/span> InputStreamReader(fileInputStream);<\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 BufferedReader br = <span class=\"code-snippet__keyword\">new<\/span> BufferedReader(inputStreamReader);<\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 <span class=\"code-snippet__comment\">\/\/\u901a\u8fc7for\u5faa\u73af\u904d\u5386\uff0c\u5c06\u8bfb\u53d6\u7684\u6bcf\u4e00\u884c\u6570\u636e\u4f7f\u7528\u9017\u53f7\u8fdb\u884c\u5206\u5272\u5e76\u4fdd\u5b58\u5230map\u4e2d<\/span><\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 <span class=\"code-snippet__keyword\">for<\/span> (<span class=\"code-snippet__built_in\">String<\/span> line = br.readLine(); line != <span class=\"code-snippet__literal\">null<\/span>; line = br.readLine()) {<\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 <span class=\"code-snippet__built_in\">Map<\/span>&lt;<span class=\"code-snippet__built_in\">String<\/span>, <span class=\"code-snippet__built_in\">String<\/span>&gt; map = <span class=\"code-snippet__keyword\">new<\/span> HashMap&lt;<span class=\"code-snippet__built_in\">String<\/span>, <span class=\"code-snippet__built_in\">String<\/span>&gt;();<\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 <span class=\"code-snippet__built_in\">String<\/span> key = line.split(<span class=\"code-snippet__string\">\",\"<\/span>)[<span class=\"code-snippet__number\">0<\/span>];<\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 <span class=\"code-snippet__built_in\">String<\/span> value = line.split(<span class=\"code-snippet__string\">\",\"<\/span>)[<span class=\"code-snippet__number\">1<\/span>];<\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 map.put(<span class=\"code-snippet__string\">\"userName\"<\/span>, key);<\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 map.put(<span class=\"code-snippet__string\">\"passWord\"<\/span>, value);<\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 <span class=\"code-snippet__comment\">\/\/\u518d\u5c06map\u5bf9\u8c61\u653e\u5230list\u96c6\u5408\u4e2d<\/span><\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 list.add(map);<\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 }<\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 br.close();<\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0 \u00a0 \u00a0 } <span class=\"code-snippet__keyword\">catch<\/span> (Exception e) {<\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 e.printStackTrace();<\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0 \u00a0 \u00a0 }<\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0 \u00a0 \u00a0 <span class=\"code-snippet__keyword\">return<\/span> list;<\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0 }<\/span><\/code><code><span class=\"code-snippet_outer\">\n<\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0 @DataProvider<\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0 public <span class=\"code-snippet__built_in\">Object<\/span>[][] testCSVData() {<\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0 \u00a0 \u00a0 <span class=\"code-snippet__comment\">\/\/\u8bfb\u53d6csv\u6587\u4ef6\u6570\u636e\uff0c\u8c03\u7528getCSVData()\u65b9\u6cd5\u6765\u83b7\u5f97\u6d4b\u8bd5\u7684\u6570\u636e<\/span><\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0 \u00a0 \u00a0 List&lt;<span class=\"code-snippet__built_in\">Map<\/span>&lt;<span class=\"code-snippet__built_in\">String<\/span>, <span class=\"code-snippet__built_in\">String<\/span>&gt;&gt; result = getCSVData(<span class=\"code-snippet__string\">\"d:\\data.csv\"<\/span>);<\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0 \u00a0 \u00a0 <span class=\"code-snippet__built_in\">Object<\/span>[][] files = <span class=\"code-snippet__keyword\">new<\/span> <span class=\"code-snippet__built_in\">Object<\/span>[result.size()][];<\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0 \u00a0 \u00a0 <span class=\"code-snippet__comment\">\/\/\u901a\u8fc7for\u5faa\u73af\u904d\u5386list\uff0c\u6bcf\u4e00\u884c\u7684\u6570\u636e\u90fd\u4f1a\u901a\u8fc7\u6784\u9020\u51fd\u6570\u6765\u8fdb\u884c\u521d\u59cb\u5316\u8d4b\u503c<\/span><\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0 \u00a0 \u00a0 <span class=\"code-snippet__keyword\">for<\/span> (int i = <span class=\"code-snippet__number\">0<\/span>; i &lt; result.size(); i++) {<\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 files[i] = <span class=\"code-snippet__keyword\">new<\/span> <span class=\"code-snippet__built_in\">Object<\/span>[]{result.get(i)};<\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0 \u00a0 \u00a0 }<\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0 \u00a0 \u00a0 <span class=\"code-snippet__keyword\">return<\/span> files;<\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0 }<\/span><\/code><code><span class=\"code-snippet_outer\">\n<\/span><\/code><code><span class=\"code-snippet_outer\">\n<\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0 @Test(dataProvider = <span class=\"code-snippet__string\">\"testCSVData\"<\/span>)<\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0 public <span class=\"code-snippet__keyword\">void<\/span> testCSVData(<span class=\"code-snippet__built_in\">Map<\/span>&lt;<span class=\"code-snippet__built_in\">String<\/span>, <span class=\"code-snippet__built_in\">String<\/span>&gt; param) {<\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0 \u00a0 \u00a0 System.out.println(param.get(<span class=\"code-snippet__string\">\"userName\"<\/span>) + <span class=\"code-snippet__string\">\"t\"<\/span> + param.get(<span class=\"code-snippet__string\">\"passWord\"<\/span>));<\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0 }<\/span><\/code><code><span class=\"code-snippet_outer\">}<\/span><\/code><\/pre>\n<\/section>\n<h2 style=\"margin-top: 1.111em; margin-bottom: 0.5556em; font-family: Helvetica, Arial, 'Droid Sans', sans-serif; font-weight: bold; font-size: 1.286em; line-height: 1.111em; border: 0px initial initial;\">MySQL<\/h2>\n<h3 style=\"margin-top: 1.4285em; margin-bottom: 0.714285em; line-height: 1.42857em; font-family: Helvetica, Arial, 'Droid Sans', sans-serif; font-weight: bold; font-size: 1em; border: 0px initial initial;\">Demo\uff1a\u4f7f\u7528\u6570\u636e\u5e93\u4f5c\u4e3a\u6570\u636e\u6e90<\/h3>\n<blockquote class=\"js_blockquote_wrap\" data-type=\"2\" data-url=\"\" data-author-name=\"\" data-content-utf8-length=\"44\" data-source-title=\"https:\/\/github.com\/xiaoliuzi20180524\/selenium-webdriver\/tree\/master\/chapter9\/src\/main\/java\/com\/data\/demo\">\n<section class=\"js_blockquote_digest\">Github:\u00a0xiaoliuzi20180524\/selenium-webdriver<\/p>\n<\/section>\n<section class=\"blockquote_info js_blockquote_source\" data-json=\"%7B%22type%22%3A%22out%22%2C%22source%22%3A%22url%22%2C%22digest%22%3A%22%3Cp%3EGithub%3A%26nbsp%3Bxiaoliuzi20180524%2Fselenium-webdriver%3C%2Fp%3E%22%2C%22digestLen%22%3A44%2C%22text%22%3A%22%22%2C%22article%22%3A%7B%7D%2C%22hasReportOverSize%22%3Afalse%2C%22editorReportData%22%3A%5B%7B%22id%22%3A%22122333%22%2C%22key%22%3A%2276%22%2C%22len%22%3A1%7D%5D%2C%22from%22%3A%22https%3A%2F%2Fgithub.com%2Fxiaoliuzi20180524%2Fselenium-webdriver%2Ftree%2Fmaster%2Fchapter9%2Fsrc%2Fmain%2Fjava%2Fcom%2Fdata%2Fdemo%22%7D\"><span class=\"blockquote_other\">https:\/\/github.com\/xiaoliuzi20180524\/selenium-webdriver\/tree\/master\/chapter9\/src\/main\/java\/com\/data\/demo<\/span><\/section>\n<\/blockquote>\n<section class=\"code-snippet__fix code-snippet__js\">\n<pre class=\"code-snippet__js\" data-lang=\"kotlin\"><code><span class=\"code-snippet_outer\"><span class=\"code-snippet__keyword\">package<\/span> com.<span class=\"code-snippet__keyword\">data<\/span>.demo;<\/span><\/code><code><span class=\"code-snippet_outer\">\n<\/span><\/code><code><span class=\"code-snippet_outer\"><span class=\"code-snippet__keyword\">import<\/span> org.testng.annotations.Test;<\/span><\/code><code><span class=\"code-snippet_outer\">\n<\/span><\/code><code><span class=\"code-snippet_outer\"><span class=\"code-snippet__keyword\">import<\/span> java.util.Map;<\/span><\/code><code><span class=\"code-snippet_outer\"><span class=\"code-snippet__comment\">\/**<\/span><\/span><\/code><code><span class=\"code-snippet_outer\"><span class=\"code-snippet__comment\"> * <span class=\"code-snippet__doctag\">@description<\/span> \u8bfb\u53d6mysql\u6570\u636e\u5e93<\/span><\/span><\/code><code><span class=\"code-snippet_outer\"><span class=\"code-snippet__comment\"> * <span class=\"code-snippet__doctag\">@author<\/span> rongrong<\/span><\/span><\/code><code><span class=\"code-snippet_outer\"><span class=\"code-snippet__comment\"> * <span class=\"code-snippet__doctag\">@version<\/span> 1.0<\/span><\/span><\/code><code><span class=\"code-snippet_outer\"><span class=\"code-snippet__comment\"> * <span class=\"code-snippet__doctag\">@date<\/span> 2020\/6\/27 14:22<\/span><\/span><\/code><code><span class=\"code-snippet_outer\"><span class=\"code-snippet__comment\"> *\/<\/span><\/span><\/code><code><span class=\"code-snippet_outer\"><span class=\"code-snippet__keyword\">public<\/span> <span class=\"code-snippet__class\"><span class=\"code-snippet__keyword\">class<\/span> <span class=\"code-snippet__title\">TestDbData<\/span> <span class=\"code-snippet__title\">extends<\/span> <span class=\"code-snippet__title\">DbDataHeleper<\/span> <\/span>{<\/span><\/code><code><span class=\"code-snippet_outer\">\n<\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0 <span class=\"code-snippet__meta\">@Test(dataProvider = <span class=\"code-snippet__meta-string\">\"dbDataMethod\"<\/span>)<\/span><\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0 <span class=\"code-snippet__keyword\">public<\/span> void testmethod1(Map&lt;?, ?&gt; param) {<\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0 \u00a0 \u00a0 System.<span class=\"code-snippet__keyword\">out<\/span>.println(param.<span class=\"code-snippet__keyword\">get<\/span>(<span class=\"code-snippet__string\">\"username\"<\/span>) + <span class=\"code-snippet__string\">\"t\"<\/span> + param.<span class=\"code-snippet__keyword\">get<\/span>(<span class=\"code-snippet__string\">\"passWord\"<\/span>) + <span class=\"code-snippet__string\">\"t\"<\/span> + param.<span class=\"code-snippet__keyword\">get<\/span>(<span class=\"code-snippet__string\">\"remark\"<\/span>));<\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0 }<\/span><\/code><code><span class=\"code-snippet_outer\">}<\/span><\/code><\/pre>\n<\/section>\n<section class=\"code-snippet__fix code-snippet__js\">\n<pre class=\"code-snippet__js\" data-lang=\"typescript\"><code><span class=\"code-snippet_outer\">package com.data.demo;<\/span><\/code><code><span class=\"code-snippet_outer\">\n<\/span><\/code><code><span class=\"code-snippet_outer\"><span class=\"code-snippet__keyword\">import<\/span> org.testng.annotations.DataProvider;<\/span><\/code><code> <\/code><code><span class=\"code-snippet_outer\"><span class=\"code-snippet__keyword\">import<\/span> java.sql.*;<\/span><\/code><code><span class=\"code-snippet_outer\"><span class=\"code-snippet__keyword\">import<\/span> java.util.*;<\/span><\/code><code><span class=\"code-snippet_outer\"><span class=\"code-snippet__comment\">\/**<\/span><\/span><\/code><code><span class=\"code-snippet_outer\"><span class=\"code-snippet__comment\"> * @description \u8bfb\u53d6mysql\u6570\u636e\u5e93<\/span><\/span><\/code><code><span class=\"code-snippet_outer\"><span class=\"code-snippet__comment\"> * @author rongrong<\/span><\/span><\/code><code><span class=\"code-snippet_outer\"><span class=\"code-snippet__comment\"> * @version 1.0<\/span><\/span><\/code><code><span class=\"code-snippet_outer\"><span class=\"code-snippet__comment\"> * @date 2020\/6\/27 14:22<\/span><\/span><\/code><code><span class=\"code-snippet_outer\"><span class=\"code-snippet__comment\"> *\/<\/span><\/span><\/code><code><span class=\"code-snippet_outer\"><span class=\"code-snippet__keyword\">public<\/span> <span class=\"code-snippet__keyword\">class<\/span> DbDataHeleper {<\/span><\/code><code> <\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0 <span class=\"code-snippet__keyword\">static<\/span> Connection conn = <span class=\"code-snippet__literal\">null<\/span>;<\/span><\/code><code> <\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0 <span class=\"code-snippet__keyword\">public<\/span> <span class=\"code-snippet__keyword\">static<\/span> <span class=\"code-snippet__built_in\">String<\/span> driverClassName = <span class=\"code-snippet__string\">\"com.mysql.jdbc.Driver\"<\/span>;<\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0 <span class=\"code-snippet__keyword\">public<\/span> <span class=\"code-snippet__keyword\">static<\/span> <span class=\"code-snippet__built_in\">String<\/span> url = <span class=\"code-snippet__string\">\"jdbc:mysql:\/\/127.0.0.1:3306\/demo?serverTimezone=UTC&amp;useSSL=false&amp;allowPublicKeyRetrieval=true&amp;zeroDateTimeBehavior=convertToNull\"<\/span>;<\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0 <span class=\"code-snippet__keyword\">public<\/span> <span class=\"code-snippet__keyword\">static<\/span> <span class=\"code-snippet__built_in\">String<\/span> username = <span class=\"code-snippet__string\">\"root\"<\/span>;<\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0 <span class=\"code-snippet__keyword\">public<\/span> <span class=\"code-snippet__keyword\">static<\/span> <span class=\"code-snippet__built_in\">String<\/span> password = <span class=\"code-snippet__string\">\"root\"<\/span>;<\/span><\/code><code> <\/code><code> <\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0 <span class=\"code-snippet__comment\">\/**<\/span><\/span><\/code><code><span class=\"code-snippet_outer\"><span class=\"code-snippet__comment\">\u00a0 \u00a0\u00a0 * \u6267\u884csql<\/span><\/span><\/code><code><span class=\"code-snippet_outer\"><span class=\"code-snippet__comment\">\u00a0 \u00a0\u00a0 *<\/span><\/span><\/code><code><span class=\"code-snippet_outer\"><span class=\"code-snippet__comment\">\u00a0 \u00a0\u00a0 * @param jdbcUrl \u6570\u636e\u5e93\u914d\u7f6e\u8fde\u63a5<\/span><\/span><\/code><code><span class=\"code-snippet_outer\"><span class=\"code-snippet__comment\">\u00a0 \u00a0\u00a0 * @param sql\u00a0 \u00a0\u00a0 sql\u8bed\u53e5<\/span><\/span><\/code><code><span class=\"code-snippet_outer\"><span class=\"code-snippet__comment\">\u00a0 \u00a0\u00a0 * @return<\/span><\/span><\/code><code><span class=\"code-snippet_outer\"><span class=\"code-snippet__comment\">\u00a0 \u00a0\u00a0 *\/<\/span><\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0 <span class=\"code-snippet__keyword\">public<\/span> <span class=\"code-snippet__keyword\">static<\/span> List&lt;Map&lt;<span class=\"code-snippet__built_in\">String<\/span>, <span class=\"code-snippet__built_in\">String<\/span>&gt;&gt; getDataList(<span class=\"code-snippet__built_in\">String<\/span> jdbcUrl, <span class=\"code-snippet__built_in\">String<\/span> sql) {<\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0 \u00a0 \u00a0 List&lt;Map&lt;<span class=\"code-snippet__built_in\">String<\/span>, <span class=\"code-snippet__built_in\">String<\/span>&gt;&gt; paramList = <span class=\"code-snippet__keyword\">new<\/span> ArrayList&lt;Map&lt;<span class=\"code-snippet__built_in\">String<\/span>, <span class=\"code-snippet__built_in\">String<\/span>&gt;&gt;();<\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0 \u00a0 \u00a0 Map&lt;<span class=\"code-snippet__built_in\">String<\/span>, <span class=\"code-snippet__built_in\">String<\/span>&gt; param = <span class=\"code-snippet__keyword\">new<\/span> HashMap&lt;<span class=\"code-snippet__built_in\">String<\/span>, <span class=\"code-snippet__built_in\">String<\/span>&gt;();<\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0 \u00a0 \u00a0 Statement stmt = <span class=\"code-snippet__literal\">null<\/span>;<\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0 \u00a0 \u00a0 <span class=\"code-snippet__keyword\">try<\/span> {<\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 <span class=\"code-snippet__comment\">\/\/ \u6ce8\u518c JDBC \u9a71\u52a8<\/span><\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 Class.forName(driverClassName);<\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 <span class=\"code-snippet__comment\">\/\/ \u6253\u5f00\u94fe\u63a5<\/span><\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 conn = DriverManager.getConnection(jdbcUrl, username, password);<\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 <span class=\"code-snippet__comment\">\/\/ \u6267\u884c\u67e5\u8be2<\/span><\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 stmt = conn.createStatement();<\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 ResultSet rs = <span class=\"code-snippet__literal\">null<\/span>;<\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 rs = stmt.executeQuery(sql);<\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 <span class=\"code-snippet__built_in\">String<\/span> columns[] = {<span class=\"code-snippet__string\">\"username\"<\/span>, <span class=\"code-snippet__string\">\"passWord\"<\/span>, <span class=\"code-snippet__string\">\"remark\"<\/span>};<\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 <span class=\"code-snippet__comment\">\/\/ \u5c55\u5f00\u7ed3\u679c\u96c6\u6570\u636e\u5e93<\/span><\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 <span class=\"code-snippet__keyword\">while<\/span> (rs.next()) {<\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 Map&lt;<span class=\"code-snippet__built_in\">String<\/span>, <span class=\"code-snippet__built_in\">String<\/span>&gt; map = <span class=\"code-snippet__keyword\">new<\/span> LinkedHashMap&lt;<span class=\"code-snippet__built_in\">String<\/span>, <span class=\"code-snippet__built_in\">String<\/span>&gt;();<\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 <span class=\"code-snippet__keyword\">for<\/span> (int i = <span class=\"code-snippet__number\">0<\/span>; i &lt; columns.length; i++) {<\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 <span class=\"code-snippet__built_in\">String<\/span> cellData = rs.getString(columns[i]);<\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 map.put(columns[i], cellData);<\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 }<\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 paramList.add(map);<\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 }<\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 <span class=\"code-snippet__comment\">\/\/ \u5b8c\u6210\u540e\u5173\u95ed<\/span><\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 rs.close();<\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 stmt.close();<\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 conn.close();<\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0 \u00a0 \u00a0 } <span class=\"code-snippet__keyword\">catch<\/span> (SQLException se) {<\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 <span class=\"code-snippet__comment\">\/\/ \u5904\u7406 JDBC \u9519\u8bef<\/span><\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 System.out.println(<span class=\"code-snippet__string\">\"\u5904\u7406 JDBC \u9519\u8bef!\"<\/span>);<\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0 \u00a0 \u00a0 } <span class=\"code-snippet__keyword\">catch<\/span> (Exception e) {<\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 <span class=\"code-snippet__comment\">\/\/ \u5904\u7406 Class.forName \u9519\u8bef<\/span><\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 System.out.println(<span class=\"code-snippet__string\">\"\u5904\u7406 Class.forName \u9519\u8bef\"<\/span>);<\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0 \u00a0 \u00a0 } <span class=\"code-snippet__keyword\">finally<\/span> {<\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 <span class=\"code-snippet__comment\">\/\/ \u5173\u95ed\u8d44\u6e90<\/span><\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 <span class=\"code-snippet__keyword\">try<\/span> {<\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 <span class=\"code-snippet__keyword\">if<\/span> (stmt != <span class=\"code-snippet__literal\">null<\/span>) stmt.close();<\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 <span class=\"code-snippet__keyword\">if<\/span> (conn != <span class=\"code-snippet__literal\">null<\/span>) conn.close();<\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 } <span class=\"code-snippet__keyword\">catch<\/span> (SQLException se) {<\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 se.printStackTrace();<\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 }<\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0 \u00a0 \u00a0 }<\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0 \u00a0 \u00a0 <span class=\"code-snippet__keyword\">return<\/span> paramList;<\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0 }<\/span><\/code><code> <\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0 <span class=\"code-snippet__meta\">@DataProvider<\/span><\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0 <span class=\"code-snippet__keyword\">public<\/span> <span class=\"code-snippet__built_in\">Object<\/span>[][] dbDataMethod() {<\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0 \u00a0 \u00a0 <span class=\"code-snippet__built_in\">String<\/span> sql = <span class=\"code-snippet__string\">\"SELECT * FROM `account`;\"<\/span>;<\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0 \u00a0 \u00a0 List&lt;Map&lt;<span class=\"code-snippet__built_in\">String<\/span>, <span class=\"code-snippet__built_in\">String<\/span>&gt;&gt; result = getDataList(url, sql);<\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0 \u00a0 \u00a0 <span class=\"code-snippet__built_in\">Object<\/span>[][] files = <span class=\"code-snippet__keyword\">new<\/span> <span class=\"code-snippet__built_in\">Object<\/span>[result.size()][];<\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0 \u00a0 \u00a0 <span class=\"code-snippet__keyword\">for<\/span> (int i = <span class=\"code-snippet__number\">0<\/span>; i &lt; result.size(); i++) {<\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 files[i] = <span class=\"code-snippet__keyword\">new<\/span> <span class=\"code-snippet__built_in\">Object<\/span>[]{result.get(i)};<\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0 \u00a0 \u00a0 }<\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0 \u00a0 \u00a0 <span class=\"code-snippet__keyword\">return<\/span> files;<\/span><\/code><code><span class=\"code-snippet_outer\">\u00a0 \u00a0 }<\/span><\/code><code><span class=\"code-snippet_outer\">}<\/span><\/code><\/pre>\n<\/section>\n<h2 style=\"margin-top: 1.111em; margin-bottom: 0.5556em; font-family: Helvetica, Arial, 'Droid Sans', sans-serif; font-weight: bold; font-size: 1.286em; line-height: 1.111em; border: 0px initial initial;\">Redis<\/h2>\n<h3 style=\"margin-top: 1.4285em; margin-bottom: 0.714285em; line-height: 1.42857em; font-family: Helvetica, Arial, 'Droid Sans', sans-serif; font-weight: bold; font-size: 1em; border: 0px initial initial;\">Demo1\uff1ajmeter\u4e2d\u4f7f\u7528java\u83b7\u53d6Redis\u4e2d\u7684\u503c<\/h3>\n<h3 style=\"margin-top: 1.4285em; margin-bottom: 0.714285em; line-height: 1.42857em; font-family: Helvetica, Arial, 'Droid Sans', sans-serif; font-weight: bold; font-size: 1em; border: 0px initial initial;\">Demo2\uff1a\u7f13\u5b58\u4e2d\u95f4\u4ef6Redis\u6027\u80fd\u6d4b\u8bd5<\/h3>\n<p>\u573a\u666f\uff1a<\/p>\n<p>\uff081\uff09\u5206\u522b\u8bbe\u7f6evalue\u503c\u5927\u5c0f\u4e3a64B\u3001128B\u3001256B\u3001512B\uff0c\u5f80Redis\u96c6\u7fa4\u548cRedis\u5355\u673a\u5199\u5165500\u4e07\u6761\u8bb0\u5f55\u3002<\/p>\n<p style=\"margin-bottom: 0.714285em; line-height: 1.42857em; border: 0px initial initial;\">\uff082\uff09\u5e76\u53d1\u5206\u522b\u8bbe\u7f6e80\u3001160\u3001320\u3001500\u30011000\u30012000\u30013000\u30014000\u30015000\u30016000\u30018000\u5bf9\u62e5\u6709500\u4e07\u6761\u8bb0\u5f55\u7684Redis\u96c6\u7fa4\u548cRedis\u5355\u673a\u8fdb\u884c\u8bfb\u53d6\u7684\u6d4b\u8bd5\u3002<\/p>\n<p style=\"margin-bottom: 0.714285em; line-height: 1.42857em; border: 0px initial initial;\">\n<p style=\"text-align: center;\"><img decoding=\"async\" class=\"rich_pages wxw-img lazyload\" data-src=\"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2023\/05\/20230528050520567.png\" src=\"https:\/\/s.nmxc.ltd\/sakurairo_vision\/@2.6\/load_svg\/inload.svg\" onerror=\"imgError(this)\" data-galleryid=\"\" data-ratio=\"0.3706385780118499\" data-s=\"300,640\" data-type=\"png\" data-w=\"3038\" \/><noscript><img decoding=\"async\" class=\"rich_pages wxw-img\" src=\"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2023\/05\/20230528050520567.png\" data-galleryid=\"\" data-ratio=\"0.3706385780118499\" data-s=\"300,640\" data-type=\"png\" data-w=\"3038\" \/><\/noscript><\/p>\n<p style=\"text-align: center;\"><img decoding=\"async\" class=\"rich_pages wxw-img lazyload\" data-src=\"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2023\/05\/20230528050523365.png\" src=\"https:\/\/s.nmxc.ltd\/sakurairo_vision\/@2.6\/load_svg\/inload.svg\" onerror=\"imgError(this)\" data-galleryid=\"\" data-ratio=\"1.1491672700941347\" data-s=\"300,640\" data-type=\"png\" data-w=\"2762\" \/><noscript><img decoding=\"async\" class=\"rich_pages wxw-img\" src=\"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2023\/05\/20230528050523365.png\" data-galleryid=\"\" data-ratio=\"1.1491672700941347\" data-s=\"300,640\" data-type=\"png\" data-w=\"2762\" \/><\/noscript><\/p>\n<p style=\"text-align: center;\"><img decoding=\"async\" class=\"rich_pages wxw-img lazyload\" data-src=\"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2023\/05\/20230528050532188.png\" src=\"https:\/\/s.nmxc.ltd\/sakurairo_vision\/@2.6\/load_svg\/inload.svg\" onerror=\"imgError(this)\" data-galleryid=\"\" data-ratio=\"0.45202349869451697\" data-s=\"300,640\" data-type=\"png\" data-w=\"3064\" \/><noscript><img decoding=\"async\" class=\"rich_pages wxw-img\" src=\"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2023\/05\/20230528050532188.png\" data-galleryid=\"\" data-ratio=\"0.45202349869451697\" data-s=\"300,640\" data-type=\"png\" data-w=\"3064\" \/><\/noscript><\/p>\n<h1 style=\"margin-top: 0.9523em; margin-bottom: 0.4761em; font-family: Helvetica, Arial, 'Droid Sans', sans-serif; font-weight: bold; font-size: 1.5em; line-height: 0.9523em; border: 0px initial initial;\">\u96c6\u5408<\/h1>\n<p style=\"text-align: center;\"><img decoding=\"async\" class=\"rich_pages wxw-img lazyload\" data-src=\"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2023\/05\/20230528050537827.jpeg\" src=\"https:\/\/s.nmxc.ltd\/sakurairo_vision\/@2.6\/load_svg\/inload.svg\" onerror=\"imgError(this)\" data-galleryid=\"\" data-ratio=\"0.3338018271257906\" data-s=\"300,640\" data-type=\"jpeg\" data-w=\"1423\" \/><noscript><img decoding=\"async\" class=\"rich_pages wxw-img\" src=\"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2023\/05\/20230528050537827.jpeg\" data-galleryid=\"\" data-ratio=\"0.3338018271257906\" data-s=\"300,640\" data-type=\"jpeg\" data-w=\"1423\" \/><\/noscript><\/p>\n<p>\u96c6\u5408\u7c7b\u5b58\u653e\u4e8ejava.util\u5305\u4e2d\uff0cJava\u96c6\u5408\u5b9a\u4e49\u4e86\u4e24\u79cd\u57fa\u672c\u7684\u6570\u636e\u7ed3\u6784\uff0c\u4e00\u79cd\u662fCollection\uff0c\u7528\u6765\u8868\u793a\u4e00\u7ec4\u5bf9\u8c61\u7684\u96c6\u5408\uff1b\u53e6\u4e00\u79cd\u5219\u662fMap\uff0c\u7528\u6765\u8868\u793a\u5bf9\u8c61\u95f4\u7684\u4e00\u7cfb\u5217\u6620\u5c04\u6216\u5173\u8054\u5173\u7cfb\u3002Set\u3001List\u548cQueue\u7b49\u63a5\u53e3\u90fd\u662fCollection\u7684\u5b50\u63a5\u53e3\u3002<\/p>\n<p>Collection\uff1cE\uff1e\u662f\u53c2\u6570\u5316\u63a5\u53e3\uff0c\u7528\u6765\u8868\u793a\u4e00\u7ec4\u6cdb\u578b\u5bf9\u8c61\u7684\u96c6\u5408<\/p>\n<h2 style=\"margin-top: 1.111em; margin-bottom: 0.5556em; font-family: Helvetica, Arial, 'Droid Sans', sans-serif; font-weight: bold; font-size: 1.286em; line-height: 1.111em; border: 0px initial initial;\">ArrayList<\/h2>\n<p>ArrayList\u662fJava\u4e2d\u6700\u5e38\u7528\u7684List\u5b9e\u73b0\u7c7b\uff0c\u901a\u8fc7\u6570\u7ec4\u5b9e\u73b0\uff0c\u53ef\u5b58\u50a8\u4e00\u7ec4\u4e0d\u552f\u4e00\u3001\u6709\u5e8f\u7684\u5bf9\u8c61\u3002<\/p>\n<p>\u7279\u70b9\uff1a\u957f\u5ea6\u53ef\u53d8\u4e14\u53ef\u4ee5\u5b58\u50a8\u4efb\u4f55\u7c7b\u578b\u7684\u6570\u636e<\/p>\n<p>\u4f18\u70b9\uff1a\u904d\u5386\u5143\u7d20\u548c\u968f\u673a\u8bbf\u95ee\u5143\u7d20\u7684\u6548\u7387\u8f83\u9ad8<\/p>\n<ul class=\"list-paddingleft-1\" style=\"margin-top: 0.2857em; margin-bottom: 0.714285em; margin-left: 2em; line-height: 1.42857em; list-style-position: outside; border: 0px initial initial;\">\n<li style=\"line-height: 1.42857em; border: 0px initial initial;\">ArrayList\u5e38\u7528\u65b9\u6cd5<\/li>\n<\/ul>\n<p style=\"text-align: center;\"><img decoding=\"async\" class=\"rich_pages wxw-img lazyload\" data-src=\"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2023\/05\/20230528050539329.png\" src=\"https:\/\/s.nmxc.ltd\/sakurairo_vision\/@2.6\/load_svg\/inload.svg\" onerror=\"imgError(this)\" data-galleryid=\"\" data-ratio=\"0.4624384236453202\" data-s=\"300,640\" data-type=\"png\" data-w=\"1624\" \/><noscript><img decoding=\"async\" class=\"rich_pages wxw-img\" src=\"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2023\/05\/20230528050539329.png\" data-galleryid=\"\" data-ratio=\"0.4624384236453202\" data-s=\"300,640\" data-type=\"png\" data-w=\"1624\" \/><\/noscript><\/p>\n<h2 style=\"margin-top: 1.111em; margin-bottom: 0.5556em; font-family: Helvetica, Arial, 'Droid Sans', sans-serif; font-weight: bold; font-size: 1.286em; line-height: 1.111em; border: 0px initial initial;\">LinkedList<\/h2>\n<p>LinkedList\u4f7f\u7528\u94fe\u8868\u7ed3\u6784\u5b58\u50a8\u6570\u636e\uff0c\u9002\u5408\u6570\u636e\u7684\u52a8\u6001\u63d2\u5165\u548c\u5220\u9664\uff0c\u4f46\u968f\u673a\u8bbf\u95ee\u548c\u904d\u5386\u901f\u5ea6\u8f83\u6162\u3002\u53ef\u4f5c\u4e3a\u5806\u6808\u3001\u961f\u5217\u548c\u53cc\u5411\u961f\u5217\u4f7f\u7528\u3002<\/p>\n<p style=\"text-align: center;\"><img decoding=\"async\" class=\"rich_pages wxw-img lazyload\" data-src=\"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2023\/05\/20230528050543272.png\" src=\"https:\/\/s.nmxc.ltd\/sakurairo_vision\/@2.6\/load_svg\/inload.svg\" onerror=\"imgError(this)\" data-galleryid=\"\" data-ratio=\"0.3852002027369488\" data-s=\"300,640\" data-type=\"png\" data-w=\"1973\" \/><noscript><img decoding=\"async\" class=\"rich_pages wxw-img\" src=\"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2023\/05\/20230528050543272.png\" data-galleryid=\"\" data-ratio=\"0.3852002027369488\" 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