golang 延时任务

通过for循环select创建一个定时任务,等待主程序往通道里写数据,并且在满足条件时及时关闭
ps:注释均可省略



package main

import (
	"fmt"
	"time"
)

// 延时任务

var tFlag bool
var tCh = make(chan int, 1)
var count int

func main() {
	go WaitTime()
	for i := 0; i < 10; i++ {
		if tFlag == true {
			break
		}
		tCh <- i
		//time.Sleep(1*time.Second)
	}
	fmt.Println("end")

}

func WaitTime() {
	t1 := time.NewTicker(3 * time.Second)
	//go func() {
		for {
			select {
			case <-t1.C:
				fmt.Println("t1定时器")
				//t1.Stop()
				tFlag = true
			case msg := <-tCh:
				fmt.Println(msg, "msg")
				count += msg
				//fmt.Println(msg)
				if count >= 12 {
					tFlag = true
				}

			}
			if tFlag == true {
				break
			}

		}
	//}()
	//fmt.Println(<-tCh,"<-tCh")
	//<-tCh
}

//0 msg
//1 msg
//2 msg
//3 msg
//4 msg
//5 msg
//end