{"id":1691,"date":"2023-06-27T13:54:14","date_gmt":"2023-06-27T05:54:14","guid":{"rendered":"https:\/\/xinchewhd.com.cn\/?p=1691"},"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%ae%9e%e7%8e%b023%e7%a7%8d%e8%ae%be%e8%ae%a1%e6%a8%a1%e5%bc%8f%e4%b9%8b%e8%a1%8c%e4%b8%ba%e5%9e%8b%e6%a8%a1%e5%bc%8f-3","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%ae%9e%e7%8e%b023%e7%a7%8d%e8%ae%be%e8%ae%a1%e6%a8%a1%e5%bc%8f%e4%b9%8b%e8%a1%8c%e4%b8%ba%e5%9e%8b%e6%a8%a1%e5%bc%8f-3\/","title":{"rendered":"Golang\u9762\u8bd5\u5b9d\u5178\u2014\u2014Go\u8bed\u8a00\u5b9e\u73b023\u79cd\u8bbe\u8ba1\u6a21\u5f0f\u4e4b\u884c\u4e3a\u578b\u6a21\u5f0f(\u4e0a)"},"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>\u4f7f\u7528Go\u5b9e\u73b023\u79cd\u8bbe\u8ba1\u6a21\u5f0f\u2014\u2014\u884c\u4e3a\u578b\u6a21\u5f0f\uff08\u4e0b\uff09\/<\/span><\/h1>\n

<\/span>\u8bbf\u95ee\u8005\u6a21\u5f0f<\/h2>\n

\u5728\u4e0d\u6539\u53d8\u5404\u5143\u7d20\u7684\u7c7b\u7684\u524d\u63d0\u4e0b\u5b9a\u4e49\u4f5c\u7528\u4e8e\u8fd9\u4e9b\u5143\u7d20\u7684\u65b0\u64cd\u4f5c<\/p>\n

? <\/span>\u9002\u7528\u573a\u666f<\/span><\/h3>\n
    \n
  1. \n
    \u6570\u636e\u7ed3\u6784\u76f8\u5bf9\u7a33\u5b9a\u7684\u5bf9\u8c61\uff0c\u4e14\u9700\u8981\u7ecf\u5e38\u5728\u6b64\u7ed3\u6784\u4e0a\u5b9a\u4e49\u65b0\u64cd\u4f5c<\/section>\n<\/li>\n<\/ol>\n

    ? <\/span>Go\u8bed\u8a00\u5b9e\u73b0<\/span><\/h3>\n
    type<\/span> Number struct<\/span> {
     Numbers []int<\/span>
    }

    func<\/span> (n *Number)<\/span> Do<\/span>(v IVisitor)<\/span><\/span> {
     v.Do(n.Numbers)
    }

    type<\/span> IVisitor interface<\/span> {
     Do([]int<\/span>)
    }

    type<\/span> AddVisitor struct<\/span>{}

    func<\/span> (v *AddVisitor)<\/span> Do<\/span>(numbers []int<\/span>)<\/span><\/span> {
     sum := 0<\/span>
     for<\/span> _, n := range<\/span> numbers {
      sum += n
     }
     fmt.Printf(\"sum: %dn\"<\/span>, sum)
    }

    type<\/span> TimesVisitor struct<\/span>{}

    func<\/span> (v *TimesVisitor)<\/span> Do<\/span>(numbers []int<\/span>)<\/span><\/span> {
     res := 1<\/span>
     for<\/span> _, n := range<\/span> numbers {
      res *= n
     }
     fmt.Printf(\"res: %dn\"<\/span>, res)
    }

    func<\/span> main<\/span>()<\/span><\/span> {
     a := Number{Numbers: []int<\/span>{1<\/span>, 2<\/span>, 3<\/span>, 4<\/span>}}
     a.Do(&AddVisitor{})
     a.Do(&TimesVisitor{})
    }
    <\/code><\/pre>\n
    ? <\/span>\u8bbf\u95ee\u8005\u6a21\u5f0f\u4f18\u70b9<\/span><\/h3>\n
      \n
    1. \n
      \u589e\u52a0\u65b0\u7684\u64cd\u4f5c\u7b80\u5355<\/section>\n<\/li>\n<\/ol>\n
      ? <\/span>\u8bbf\u95ee\u8005\u6a21\u5f0f\u7f3a\u70b9<\/span><\/h3>\n
        \n
      1. \n
        \u589e\u52a0\u65b0\u7684\u6570\u636e\u7ed3\u6784\u56f0\u96be<\/section>\n<\/li>\n<\/ol>\n
        <\/span>\u6a21\u677f\u65b9\u6cd5\u6a21\u5f0f<\/h2>\n
        \u5b9a\u4e49\u4e00\u4e2a\u64cd\u4f5c\u4e2d\u7684\u7b97\u6cd5\u7684\u9aa8\u67b6\uff0c\u800c\u5c06\u4e00\u4e9b\u6b65\u9aa4\u5ef6\u8fdf\u5230\u5b50\u7c7b\u4e2d\uff0c\u4f7f\u5f97\u5b50\u7c7b\u53ef\u4ee5\u4e0d\u6539\u53d8\u4e00\u4e2a\u7b97\u6cd5\u7684\u7ed3\u6784\u5373\u53ef\u91cd\u5b9a\u4e49\u8be5\u7b97\u6cd5\u7684\u67d0\u4e9b\u7279\u5b9a\u6b65\u9aa4<\/p>\n
        ? <\/span>\u9002\u7528\u573a\u666f<\/span><\/h3>\n
          \n
        1. \n
          \u6a21\u677f\u6a21\u5f0f\u89e3\u51b3\u4e86\u4e00\u4e9b\u65b9\u6cd5\u901a\u7528\uff0c\u5374\u5728\u6bcf\u4e2a\u5b50\u7c7b\u90fd\u91cd\u65b0\u5199\u4e00\u904d\u7684\u8fd9\u4e9b\u65b9\u6cd5<\/section>\n<\/li>\n<\/ol>\n
          ? <\/span>Go\u8bed\u8a00\u5b9e\u73b0<\/span><\/h3>\n
          type<\/span> Notify struct<\/span> {
          }

          func<\/span> (n *Notify)<\/span> Send<\/span>()<\/span><\/span> {
           fmt.Println(\"send error\"<\/span>)
          }

          type<\/span> SMSNotify struct<\/span> {
           Notify
          }

          func<\/span> (n *SMSNotify)<\/span> Send<\/span>()<\/span><\/span> {
           fmt.Println(\"send sms success\"<\/span>)
          }

          type<\/span> EMailNotify struct<\/span> {
           Notify
          }

          func<\/span> (n *EMailNotify)<\/span> Send<\/span>()<\/span><\/span> {
           fmt.Println(\"send email success\"<\/span>)
          }

          func<\/span> main<\/span>()<\/span><\/span> {
           a := SMSNotify{}
           a.Send()

           b := EMailNotify{}
           b.Send()
          }
          <\/code><\/pre>\n
          ? <\/span>\u6a21\u677f\u65b9\u6cd5\u6a21\u5f0f\u4f18\u70b9<\/span><\/h3>\n
            \n
          1. \n
            \u5c01\u88c5\u4e0d\u53d8\u7684\u90e8\u5206\uff0c\u6269\u5c55\u53ef\u53d8\u90e8\u5206<\/section>\n<\/li>\n
          2. \n
            \u63d0\u53d6\u516c\u5171\u4ee3\u7801\uff0c\u4fbf\u4e8e\u7ef4\u62a4<\/section>\n<\/li>\n
          3. \n
            \u884c\u4e3a\u7531\u7236\u7c7b\u63a7\u5236\uff0c\u5b50\u7c7b\u5b9e\u73b0<\/section>\n<\/li>\n<\/ol>\n
            ? <\/span>\u6a21\u677f\u65b9\u6cd5\u6a21\u5f0f\u7f3a\u70b9<\/span><\/h3>\n
              \n
            1. \n
              \u6bcf\u4e00\u4e2a\u4e0d\u540c\u7684\u5b9e\u4f8b\uff0c\u90fd\u9700\u8981\u4e00\u4e2a\u5b50\u7c7b\u6765\u5b9e\u73b0\uff0c\u5bfc\u81f4\u7c7b\u7684\u4e2a\u6570\u589e\u52a0<\/section>\n<\/li>\n<\/ol>\n
              <\/span>\u7b56\u7565\u6a21\u5f0f<\/h2>\n
              \u5b9a\u4e49\u4e00\u7cfb\u5217\u7684\u7b97\u6cd5\uff0c\u628a\u5b83\u4eec\u4e00\u4e2a\u4e2a\u5c01\u88c5\u8d77\u6765\uff0c\u5e76\u4e14\u4f7f\u5b83\u4eec\u53ef\u76f8\u4e92\u66ff\u6362<\/p>\n
              ? <\/span>\u9002\u7528\u573a\u666f<\/span><\/h3>\n
                \n
              1. \n
                \u4e00\u4e2a\u7c7b\u5b9a\u4e49\u4e86\u591a\u79cd\u884c\u4e3a\uff0c\u5e76\u4e14\u8fd9\u4e9b\u884c\u4e3a\u4ee5\u591a\u4e2aif...else\u5f62\u5f0f\u51fa\u73b0<\/section>\n<\/li>\n<\/ol>\n
                ? <\/span>Go\u8bed\u8a00\u5b9e\u73b0<\/span><\/h3>\n
                type<\/span> Operation interface<\/span> {
                 Do(n1, n2 int<\/span>) int<\/span>
                }

                type<\/span> OperationAdd struct<\/span> {
                }

                func<\/span> NewOperationAdd<\/span>()<\/span> *OperationAdd<\/span><\/span> {
                 return<\/span> &OperationAdd{}
                }

                func<\/span> (o *OperationAdd)<\/span> Do<\/span>(n1, n2 int<\/span>)<\/span> int<\/span><\/span> {
                 return<\/span> n1 + n2
                }

                type<\/span> OperationSubtract struct<\/span> {
                }

                func<\/span> NewOperationSubtract<\/span>()<\/span> *OperationSubtract<\/span><\/span> {
                 return<\/span> &OperationSubtract{}
                }

                func<\/span> (o *OperationSubtract)<\/span> Do<\/span>(n1, n2 int<\/span>)<\/span> int<\/span><\/span> {
                 return<\/span> n1 -n2
                }

                type<\/span> Context struct<\/span> {
                 operation Operation
                }

                func<\/span> NewContext<\/span>(operation Operation)<\/span> *Context<\/span><\/span> {
                 return<\/span> &Context{operation: operation}
                }

                func<\/span> (c *Context)<\/span> Do<\/span>(n1, n2 int<\/span>)<\/span> int<\/span><\/span> {
                 return<\/span> c.operation.Do(n1, n2)
                }

                func<\/span> main<\/span>()<\/span><\/span> {
                 a := NewContext(NewOperationAdd())
                 a.Do(1<\/span>, 2<\/span>)
                 b := NewContext(NewOperationSubtract())
                 b.Do(3<\/span>, 1<\/span>)
                }
                <\/code><\/pre>\n
                ? <\/span>\u7b56\u7565\u6a21\u5f0f\u4f18\u70b9<\/span><\/h3>\n
                  \n
                1. \n
                  \u907f\u514d\u4f7f\u7528\u591a\u91cd\u5224\u65ad\u8bed\u53e5<\/section>\n<\/li>\n
                2. \n
                  \u7b97\u6cd5\u53ef\u81ea\u7531\u5207\u6362<\/section>\n<\/li>\n
                3. \n
                  \u6269\u5c55\u6027\u597d<\/section>\n<\/li>\n<\/ol>\n
                  ? <\/span>\u7b56\u7565\u6a21\u5f0f\u7f3a\u70b9<\/span><\/h3>\n
                    \n
                  1. \n
                    \u5ba2\u6237\u7aef\u9700\u8981\u7406\u89e3\u6240\u6709\u7b56\u7565\u7b97\u6cd5\u7684\u533a\u522b\uff0c\u4ee5\u4fbf\u9009\u62e9\u5408\u9002\u7684\u7b97\u6cd5\u7c7b<\/section>\n<\/li>\n
                  2. \n
                    \u7b56\u7565\u7c7b\u5f88\u591a\uff0c\u589e\u52a0\u7ef4\u62a4\u96be\u5ea6<\/section>\n<\/li>\n<\/ol>\n
                    <\/span>\u72b6\u6001\u6a21\u5f0f<\/h2>\n
                    \u5141\u8bb8\u4e00\u4e2a\u5bf9\u8c61\u5728\u5176\u5185\u90e8\u72b6\u6001\u6539\u53d8\u65f6\u6539\u53d8\u5b83\u7684\u884c\u4e3a<\/p>\n
                    ? <\/span>\u9002\u7528\u573a\u666f<\/span><\/h3>\n
                      \n
                    1. \n
                      \u4ee3\u7801\u4e2d\u5305\u542b\u5927\u91cf\u4e0e\u5bf9\u8c61\u72b6\u6001\u6709\u5173\u7684\u6761\u4ef6\u8bed\u53e5<\/section>\n<\/li>\n<\/ol>\n
                      ? <\/span>Go\u8bed\u8a00\u5b9e\u73b0<\/span><\/h3>\n
                      type<\/span> Account struct<\/span> {
                       Action State
                       status string<\/span>
                      }

                      func<\/span> NewAccount<\/span>(status string<\/span>)<\/span> *Account<\/span><\/span> {
                       a := &Account{status: status}
                       a.initState()
                       return<\/span> a
                      }

                      func<\/span> (a *Account)<\/span> initState<\/span>()<\/span><\/span> {
                       if<\/span> a.status == \"normal\"<\/span> {
                        a.Action = &NormalState{}
                       } else<\/span> {
                        a.Action = &BannedState{}
                       }
                      }

                      type<\/span> State interface<\/span> {
                       Login()
                      }

                      type<\/span> NormalState struct<\/span>{}

                      func<\/span> (s *NormalState)<\/span> Login<\/span>()<\/span><\/span> {
                       fmt.Println(\"\u767b\u9646\u6210\u529f\"<\/span>)
                      }

                      type<\/span> BannedState struct<\/span>{}

                      func<\/span> (s *BannedState)<\/span> Login<\/span>()<\/span><\/span> {
                       fmt.Println(\"\u8d26\u53f7\u5c01\u7981\uff0c\u7981\u6b62\u767b\u9646\"<\/span>)
                      }

                      func<\/span> main<\/span>()<\/span><\/span> {
                       a := NewAccount(\"normal\"<\/span>)
                       a.Action.Login()
                      }
                      <\/code><\/pre>\n
                      ? <\/span>\u72b6\u6001\u6a21\u5f0f\u4f18\u70b9<\/span><\/h3>\n
                        \n
                      1. \n
                        \u5c01\u88c5\u4e86\u8f6c\u6362\u89c4\u5219<\/section>\n<\/li>\n
                      2. \n
                        \u5c06\u6240\u6709\u4e0e\u72b6\u6001\u76f8\u5173\u7684\u884c\u4e3a\u653e\u5230\u4e00\u4e2a\u7c7b\u4e2d\uff0c\u65b9\u4fbf\u7684\u589e\u52a0\u72b6\u6001<\/section>\n<\/li>\n
                      3. \n
                        \u5141\u8bb8\u72b6\u6001\u8f6c\u6362\u903b\u8f91\u548c\u72b6\u6001\u5bf9\u8c61\u5408\u6210\u4e00\u4f53\uff0c\u800c\u4e0d\u662f\u5de8\u5927\u7684\u6761\u4ef6\u8bed\u53e5\u5757<\/section>\n<\/li>\n<\/ol>\n
                        ? <\/span>\u72b6\u6001\u6a21\u5f0f\u7f3a\u70b9<\/span><\/h3>\n
                          \n
                        1. \n
                          \u589e\u52a0\u4e86\u7cfb\u7edf\u4e2d\u7c7b\u548c\u5bf9\u8c61\u7684\u4e2a\u6570\uff0c\u5bfc\u81f4\u7cfb\u7edf\u8fd0\u884c\u5f00\u9500\u53d8\u5927<\/section>\n<\/li>\n
                        2. \n
                          \u72b6\u6001\u6a21\u5f0f\u7684\u7ed3\u6784\u4e0e\u5b9e\u73b0\u90fd\u6bd4\u8f83\u590d\u6742<\/section>\n<\/li>\n
                        3. \n
                          \u5bf9\"\u5f00\u95ed\u539f\u5219\"\u7684\u652f\u6301\u4e0d\u53cb\u597d<\/section>\n<\/li>\n<\/ol>\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":"
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