通过chan控制多个goroutine

/**
 * Created by Administrator on 13-12-9.
 */
package main

import "fmt"
import "time"

func main() {
	closeChan := make(chan int, 3)

	go func() {
		i := 0
		var flag int = 0
		go func() {
			flag = <-closeChan
		}()
		for flag == 0 {

			i++
			fmt.Println("goroutine 1", i)
			time.Sleep(time.Second * 1)
		}
	}()

	go func() {
		i := 0
		var flag int = 0
		go func() {
			flag = <-closeChan
		}()
		for flag == 0 {

			i++
			fmt.Println("goroutine 2", i)
			time.Sleep(time.Second * 1)
		}
	}()

	go func() {
		i := 0
		var flag int = 0
		go func() {
			flag = <-closeChan
		}()
		for flag == 0 {

			i++
			fmt.Println("goroutine 3", i)
			time.Sleep(time.Second * 1)
		}
	}()

	time.Sleep(time.Second * 10)
	closeChan <- 1 // 关闭1个

	time.Sleep(time.Second * 10)
	closeChan <- 1 // 关闭1个

	time.Sleep(time.Second * 10)
	closeChan <- 1 // 关闭1个

	time.Sleep(time.Second * 30)
}

对一个管道的控制，达到控制多个goroutine的顺序关闭

/**
 * Created by Administrator on 13-12-9.
 */
package main

import "fmt"
import "time"

func main() {
	closeChan := make(chan int, 3)

	go func() {
		i := 0
		flag := true
		go func() {
			<-closeChan
			flag = false
		}()
		for flag {

			i++
			fmt.Println("goroutine 1", i)
			time.Sleep(time.Second * 1)
		}
	}()

	go func() {
		i := 0
		flag := true
		go func() {
			<-closeChan
			flag = false
		}()
		for flag {

			i++
			fmt.Println("goroutine 2", i)
			time.Sleep(time.Second * 1)
		}
	}()

	go func() {
		i := 0
		flag := true
		go func() {
			<-closeChan
			flag = false
		}()
		for flag {

			i++
			fmt.Println("goroutine 3", i)
			time.Sleep(time.Second * 1)
		}
	}()

	time.Sleep(time.Second * 30)
	close(closeChan)
	time.Sleep(time.Second * 30)
}

对一个管道的控制，达到控制多个goroutine的一并关闭