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@@ -127,4 +127,5 @@ fmt.Println("d.PropertyTwo", d.PropertyTwo) | |
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| ``` | ||
| buckets | ||
| ``` | ||
| ``` | ||
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| Original file line number | Diff line number | Diff line change |
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| @@ -1,173 +1,8 @@ | ||
| package main | ||
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| // GODEBUG=scheddetail=1,schedtrace=1000 ./go-learn | ||
| // | ||
| // | ||
| // | ||
| // | ||
| // | ||
| // | ||
| // | ||
| // | ||
| // | ||
| // | ||
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| // type Base struct { | ||
| // } | ||
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| // func (b *Base) Do() { | ||
| // fmt.Println("base") | ||
| // b.DoA() | ||
| // } | ||
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| // func (b *Base) DoA() { | ||
| // fmt.Println("base DoA") | ||
| // } | ||
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| // type Demo struct { | ||
| // Base | ||
| // } | ||
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| // func (b *Demo) DoA() { | ||
| // fmt.Println("Demo DoA") | ||
| // } | ||
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| func main() { | ||
| // (&Demo{}).Do() | ||
| // ctx, cancelFunc := context.WithTimeout(context.Background(), 3*time.Second) | ||
| // defer cancelFunc() | ||
| // logicResChan := make(chan bool, 1) | ||
| // go func(logicResChan chan bool) { | ||
| // fmt.Println("获取地址信息 ing1...") | ||
| // // bc.AddressInfo = &AddressInfo{ | ||
| // // AddressID: 9931831, | ||
| // // FristName: "hei", | ||
| // // SecondName: "heihei", | ||
| // // } | ||
| // fmt.Println("获取地址信息 ing2...") | ||
| // time.Sleep(1 * time.Second) | ||
| // logicResChan <- true | ||
| // fmt.Println("获取地址信息 done...") | ||
| // }(logicResChan) | ||
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| // fmt.Println("获取地址信息 wait...") | ||
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| // select { | ||
| // case <-logicResChan: | ||
| // // 业务执行结果 | ||
| // fmt.Println("获取地址信息 wait.done...") | ||
| // break | ||
| // case <-ctx.Done(): | ||
| // // 超时退出 | ||
| // fmt.Println("获取地址信息 timeout...") | ||
| // break | ||
| // } | ||
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| // wg := &sync.WaitGroup{} | ||
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| // wg.Add(1) | ||
| // go func(wg *sync.WaitGroup) { | ||
| // fmt.Println("aaa") | ||
| // wg.Done() | ||
| // }(wg) | ||
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| // wg.Add(1) | ||
| // go func(wg *sync.WaitGroup) { | ||
| // fmt.Println("aaa") | ||
| // wg.Done() | ||
| // }(wg) | ||
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| // wg.Add(1) | ||
| // go func(wg *sync.WaitGroup) { | ||
| // fmt.Println("aaa") | ||
| // wg.Done() | ||
| // }(wg) | ||
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| // fmt.Println("bbb") | ||
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| // wg.Wait() | ||
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| // goroutine 顺序打印 | ||
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| // // context 控制多个 goroutine 超时 | ||
| // ctx, cancelFunc := context.WithTimeout(context.Background(), 2*time.Second) | ||
| // defer cancelFunc() | ||
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| // go func(ctx context.Context) { | ||
| // requestHandleResult := make(chan string, 1) | ||
| // go func(resChan chan<- string) { | ||
| // time.Sleep(3 * time.Second) | ||
| // resChan <- "success" | ||
| // }(requestHandleResult) | ||
| // select { | ||
| // case res := <-requestHandleResult: | ||
| // fmt.Println("requestHandleResult: " + res) | ||
| // case <-ctx.Done(): | ||
| // fmt.Println("child | context.WithTimeout | ctx err: " + ctx.Err().Error()) | ||
| // } | ||
| // }(ctx) | ||
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| // select { | ||
| // case <-ctx.Done(): | ||
| // fmt.Println("main | context.WithTimeout | ctx err: " + ctx.Err().Error()) | ||
| // } | ||
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| // runtime.GOMAXPROCS(runtime.NumCPU()) | ||
| // debug.SetMaxThreads(runtime.NumCPU()) | ||
| // go (func() { | ||
| // fmt.Println("aa") | ||
| // })() | ||
| // var a int32 = 1 | ||
| // atomic.AddInt32(&a, 1) | ||
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| // fmt.Println(a) | ||
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| // fmt.Println("runtime.NumCPU()", runtime.NumCPU()) | ||
| // runtime.GOMAXPROCS(runtime.NumCPU()) | ||
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| // wg := &sync.WaitGroup{} | ||
| // numbers := 10 | ||
| // wg.Add(numbers) | ||
| // for range make([]byte, numbers) { | ||
| // go func(wg *sync.WaitGroup) { | ||
| // var counter int | ||
| // for i := 0; i < 1e10; i++ { | ||
| // counter++ | ||
| // } | ||
| // wg.Done() | ||
| // }(wg) | ||
| // } | ||
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| // wg.Wait() | ||
| // l, _ := net.Listen("tcp", ":9999") | ||
| // for { | ||
| // c, _ := l.Accept() | ||
| // if c == nil { | ||
| // continue | ||
| // } | ||
| // fmt.Println("c.RemoteAddr()", c.RemoteAddr()) | ||
| // go func(c net.Conn) { | ||
| // defer c.Close() | ||
| // var body []byte | ||
| // for { | ||
| // _, err := c.Read(body) | ||
| // if err != nil { | ||
| // break | ||
| // } | ||
| // fmt.Println("body", string(body)) | ||
| // c.Write(body) | ||
| // break | ||
| // } | ||
| // }(c) | ||
| // } | ||
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| // // ------------------ 使用http包启动一个http服务 方式一 ------------------ | ||
| // // *http.Request http请求内容实例的指针 | ||
| // // http.ResponseWriter 写http响应内容的实例 | ||
| // http.HandleFunc("/v1/demo", func(w http.ResponseWriter, r *http.Request) { | ||
| // // 写入响应内容 | ||
| // w.Write([]byte("Hello TIGERB !\n")) | ||
| // }) | ||
| // // 启动一个http服务并监听8888端口 这里第二个参数可以指定handler | ||
| // http.ListenAndServe(":8888", nil) | ||
| demo := map[string]string{} | ||
| demo["a"] = "aa" | ||
| demo["b"] = "bb" | ||
| demo["c"] = "cc" | ||
| } |
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