go 中的goroutine 等待

2018-11-24 16:21:35 catherine

package main
import (
    "sync"
    "time"
)
func main() {
    var wait sync.WaitGroup
    wait.Add(1)
    go func() {
        print("Hello Goroutine")
        wait.Done()
    }()
    //wait.Wait()    //这个会有情 goroutine 执行完再退出
    time.Sleep(time.Second) //等待一下,不然,会经常看不到 Hello Goroutine 的打印输出
}

分类: web

标签: golang

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作者: catherine

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