{"id":1703,"date":"2023-06-27T13:54:14","date_gmt":"2023-06-27T05:54:14","guid":{"rendered":"https:\/\/xinchewhd.com.cn\/?p=1703"},"modified":"2023-06-27T13:54:14","modified_gmt":"2023-06-27T05:54:14","slug":"golang%e9%9d%a2%e8%af%95%e5%ae%9d%e5%85%b8-go%e8%af%ad%e8%a8%80%e5%9f%ba%e6%9c%ac%e6%95%b0%e6%8d%ae%e7%b1%bb%e5%9e%8b%e8%bd%ac%e6%8d%a2","status":"publish","type":"post","link":"https:\/\/xinchewhd.com.cn\/index.php\/go\/golang%e9%9d%a2%e8%af%95%e5%ae%9d%e5%85%b8-go%e8%af%ad%e8%a8%80%e5%9f%ba%e6%9c%ac%e6%95%b0%e6%8d%ae%e7%b1%bb%e5%9e%8b%e8%bd%ac%e6%8d%a2\/","title":{"rendered":"Golang\u9762\u8bd5\u5b9d\u5178\u2014\u2014Go\u8bed\u8a00\u57fa\u672c\u6570\u636e\u7c7b\u578b\u8f6c\u6362"},"content":{"rendered":"
\n
\n

\/ <\/span><\/span>\u5173\u4e8eGolang\u9762\u8bd5\u5b9d\u5178\/<\/span><\/h1>\n

\u6700\u8fd1\u51e0\u5e74\uff0cGo\u7684\u70ed\u5ea6\u6301\u7eed\u98d9\u5347\uff0c\u56fd\u5185\u5916\u5f88\u591a\u5927\u516c\u53f8\u90fd\u5728\u5927\u89c4\u6a21\u7684\u4f7f\u7528Go\u3002Google\u662fGo\u8bed\u8a00\u8bde\u751f\u7684\u5730\u65b9\uff0c\u5176\u4ed6\u516c\u53f8\u5982Facebook\u3001\u817e\u8baf\u3001\u963f\u91cc\u3001\u5b57\u8282\u8df3\u52a8\u3001\u767e\u5ea6\u3001\u4eac\u4e1c\u3001\u5c0f\u7c73\u7b49\u90fd\u5728\u62e5\u62b1\u548c\u8f6c\u5411Go\u3002Go\u8bed\u8a00\u7684\u5f00\u6e90\u9879\u76ee\u4e5f\u975e\u5e38\u591a\uff0c\u5982kubernetes\u3001docker\u3001etcd\u3002<\/p>\n

\u968f\u7740\u5e02\u573a\u5bf9Go\u8bed\u8a00\u4eba\u624d\u9700\u6c42\u7684\u589e\u957f\uff0c\u5f88\u591a\u5f00\u53d1\u8005\u90fd\u6295\u5165\u4e86Go\u8bed\u8a00\u7684\u6000\u62b1\u3002\u672c\u7cfb\u5217\u6587\u7ae0\u5c06\u4ee5\u7b2c\u4e00\u89c6\u89d2\u4e0e\u5927\u5bb6\u4e00\u540c\u5f00\u59cbGolang\u7684\u9762\u8bd5\u4e4b\u8def\uff0c\u5e0c\u671b\u5927\u5bb6\u80fd\u591f\u6709\u6240\u6536\u83b7\uff0c\u62ff\u4e0b\u5fc3\u4eea\u7684offer\u3002<\/p>\n

\/ <\/span><\/span>Go\u8bed\u8a00\u57fa\u672c\u6570\u636e\u7c7b\u578b\u8f6c\u6362\/<\/span><\/h1>\n

Golang\u548c\u5176\u5b83\u4e00\u4e9b\u8bed\u8a00\u4e0d\u540c\uff0c\u5728\u4e0d\u540c\u7c7b\u578b\u7684\u53d8\u91cf\u95f4\u8d4b\u503c\u65f6\uff0c\u4e0d\u80fd\u81ea\u52a8\u8f6c\u6362\uff0c\u9700\u8981\u663e\u5f0f\u8f6c\u6362<\/p>\n

<\/span>\u6570\u503c\u7c7b\u578b\u4e4b\u95f4\u8f6c\u6362<\/h2>\n

\u53ef\u4f7f\u7528\u8868\u8fbe\u5f0fT(v)\u5c06\u503cv\u8f6c\u6362\u4e3a\u7c7b\u578bT\uff0c\u5982\uff1a<\/p>\n

var<\/span> i int8<\/span> = 1<\/span>
var<\/span> n1 float32<\/span> = float32<\/span>(i)
var<\/span> n2 int64<\/span> = int64<\/span>(i)
<\/code><\/pre>\n
\u6ce8\u610f\uff1a\u5728\u8f6c\u6362\u8fc7\u7a0b\u4e2d\uff0c\u5982\u679c\u5b58\u5728\u6570\u503c\u6ea2\u51fa(\u5982int64\u7684128\u8f6c\u6210int8)\uff0c\u7f16\u8bd1\u65f6\u4e0d\u4f1a\u62a5\u9519\uff0c\u4f46\u662f\u8f6c\u6362\u7684\u7ed3\u679c\u6309\u7167\u6ea2\u51fa\u5904\u7406\uff0c\u548c\u6211\u4eec\u5e0c\u671b\u7684\u7ed3\u679c\u4e0d\u4e00\u6837\uff0c\u56e0\u6b64\u5728\u8f6c\u6362\u65f6\uff0c\u9700\u8981\u8003\u8651\u6570\u503c\u8303\u56f4\u3002<\/p>\n
<\/span>\u57fa\u672c\u7c7b\u578b\u8f6c\u6362\u4e3a\u5b57\u7b26\u4e32\u7c7b\u578b<\/h2>\n
? <\/span>\u65b9\u5f0f1\uff1a\u4f7f\u7528fmt.Sprintf<\/span><\/h3>\n
func<\/span> Sprintf<\/span>(format string<\/span>, a ...interface<\/span>{})<\/span> string<\/span><\/span>
<\/code><\/pre>\n
fmt\u5305\u4e2d\u7684Sprintf\u65b9\u6cd5\u53ef\u4ee5\u6839\u636eformat\u53c2\u6570\u751f\u6210\u683c\u5f0f\u5316\u7684\u5b57\u7b26\u4e32\u5e76\u8fd4\u56de\u8be5\u5b57\u7b26\u4e32\uff0c\u8be6\u7ec6\u4f7f\u7528\u8bf4\u660e\u89c1\uff1ahttps:\/\/golang.google.cn\/pkg\/fmt\/<\/p>\n
\u793a\u4f8b\uff1a<\/p>\n
var<\/span> i = 12.3<\/span>
var<\/span> s1 = fmt.Sprintf(\"%v\"<\/span>, i)
fmt.Printf(\"s1\u5bf9\u5e94\u7684\u7c7b\u578b\uff1a%T,\u5bf9\u5e94\u7684\u503c%vn\"<\/span>, s1, s1)
<\/code><\/pre>\n
? <\/span>\u65b9\u5f0f2\uff1a\u4f7f\u7528strconv<\/span><\/h3>\n
func<\/span> FormatBool<\/span>(b bool<\/span>)<\/span> string<\/span><\/span>
func<\/span> FormatComplex<\/span>(c complex128<\/span>, fmt byte<\/span>, prec, bitSize int<\/span>)<\/span> string<\/span><\/span>
func<\/span> FormatFloat<\/span>(f float64<\/span>, fmt byte<\/span>, prec, bitSize int<\/span>)<\/span> string<\/span><\/span>
func<\/span> FormatInt<\/span>(i int64<\/span>, base int<\/span>)<\/span> string<\/span><\/span>
func<\/span> FormatUint<\/span>(i uint64<\/span>, base int<\/span>)<\/span> string<\/span><\/span>
<\/code><\/pre>\n
\u793a\u4f8b\uff1a<\/p>\n
var<\/span> i = 12.3<\/span>
var<\/span> s1 = strconv.FormatFloat(i, 'f'<\/span>, 10<\/span>, 64<\/span>)
fmt.Printf(\"s1\u5bf9\u5e94\u7684\u7c7b\u578b\uff1a%T,\u5bf9\u5e94\u7684\u503c%vn\"<\/span>, s1, s1)
<\/code><\/pre>\n
<\/span>\u5b57\u7b26\u4e32\u7c7b\u578b\u8f6c\u6362\u4e3a\u5176\u4ed6\u7c7b\u578b<\/h2>\n
\u5b57\u7b26\u4e32\u7c7b\u578b\u53ef\u4f7f\u7528strconv\u5305\u63d0\u4f9b\u7684\u65b9\u6cd5\u8f6c\u6362\u4e3a\u5176\u4ed6\u7c7b\u578b\uff1a<\/p>\n
func<\/span> ParseBool<\/span>(str string<\/span>)<\/span> (bool<\/span>, error)<\/span><\/span>
func<\/span> ParseComplex<\/span>(s string<\/span>, bitSize int<\/span>)<\/span> (complex128<\/span>, error)<\/span><\/span>
func<\/span> ParseFloat<\/span>(s string<\/span>, bitSize int<\/span>)<\/span> (float64<\/span>, error)<\/span><\/span>
func<\/span> ParseInt<\/span>(s string<\/span>, base int<\/span>, bitSize int<\/span>)<\/span> (i int64<\/span>, err error)<\/span><\/span>
func<\/span> ParseUint<\/span>(s string<\/span>, base int<\/span>, bitSize int<\/span>)<\/span> (uint64<\/span>, error)<\/span><\/span>
<\/code><\/pre>\n
\u793a\u4f8b\uff1a<\/p>\n
var<\/span> i = \"12.34\"<\/span>
n1, err := strconv.ParseFloat(i, 64<\/span>)
if<\/span> err != nil<\/span> {
    fmt.Printf(\"conv error: %+v\"<\/span>, err)
}
fmt.Printf(\"n1\u5bf9\u5e94\u7684\u7c7b\u578b\uff1a%T,\u5bf9\u5e94\u7684\u503c%vn\"<\/span>, n1, n1)
<\/code><\/pre>\n<\/section>\n

<\/p>\n
<\/mp-style-type><\/p>\n
\n
\u672c\u7bc7\u6587\u7ae0\u6765\u6e90\u4e8e\u5fae\u4fe1\u516c\u4f17\u53f7:                 \u8349\u8393\u6a59\u6c41\u513f              <\/p>\n<\/blockquote>\n<\/div>\n","raw":"","protected":false},"excerpt":{"rendered":"
\/ \u5173\u4e8eGolang\u9762\u8bd5\u5b9d\u5178\/ \u6700\u8fd1\u51e0\u5e74\uff0cGo\u7684\u70ed\u5ea6\u6301\u7eed\u98d9\u5347\uff0c\u56fd\u5185\u5916\u5f88\u591a\u5927\u516c\u53f8\u90fd\u5728\u5927\u89c4\u6a21\u7684\u4f7f\u7528Go\u3002Google\u662fGo\u8bed\u8a00\u8bde\u751f\u7684\u5730 …<\/p>\n","protected":false},"author":1,"featured_media":1702,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"emotion":"","emotion_color":"","title_style":"","license":"","footnotes":""},"categories":[23],"tags":[],"class_list":["post-1703","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-go"],"post_thumbnail_image":"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2023\/05\/20230528044618951-150x150.jpeg","content_first_image":null,"post_medium_image_300":"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2023\/05\/20230528044618951-300x128.jpeg","post_thumbnail_image_624":"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2023\/05\/20230528044618951.jpeg","post_frist_image":null,"post_medium_image":"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2023\/05\/20230528044618951-300x128.jpeg","post_large_image":"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2023\/05\/20230528044618951.jpeg","post_full_image":"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2023\/05\/20230528044618951.jpeg","post_all_images":[],"videoAdId":"","listAd":"0","listAdId":"","listAdEvery":6,"total_comments":0,"category_name":"Go","post_date":"2023-06-27","like_count":"0","praiseWord":"\u9f13\u52b1","copyright_state":"","excitationAd":"0","rewardedVideoAdId":"","detailAdId":"","detailAd":"0","enterpriseMinapp":"0","audios":[],"postImageUrl":"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2023\/05\/20230519082947553.jpg","avatarurls":[],"related_posts":null,"pageviews":227,"next_post_id":1670,"next_post_title":"Golang\u9762\u8bd5\u5b9d\u5178\u2014\u2014Go\u8bed\u8a00\u5b9e\u73b023\u79cd\u8bbe\u8ba1\u6a21\u5f0f\u4e4b\u7ed3\u6784\u578b\u6a21\u5f0f(\u4e0b)","previous_post_id":null,"previous_post_title":null,"_links":{"self":[{"href":"https:\/\/xinchewhd.com.cn\/index.php\/wp-json\/wp\/v2\/posts\/1703","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/xinchewhd.com.cn\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/xinchewhd.com.cn\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/xinchewhd.com.cn\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/xinchewhd.com.cn\/index.php\/wp-json\/wp\/v2\/comments?post=1703"}],"version-history":[{"count":0,"href":"https:\/\/xinchewhd.com.cn\/index.php\/wp-json\/wp\/v2\/posts\/1703\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/xinchewhd.com.cn\/index.php\/wp-json\/wp\/v2\/media\/1702"}],"wp:attachment":[{"href":"https:\/\/xinchewhd.com.cn\/index.php\/wp-json\/wp\/v2\/media?parent=1703"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/xinchewhd.com.cn\/index.php\/wp-json\/wp\/v2\/categories?post=1703"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/xinchewhd.com.cn\/index.php\/wp-json\/wp\/v2\/tags?post=1703"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}