golang奇偶数交叉打印

golang奇偶数交叉打印

package main

import (
	"fmt"
	"sync"
)

func main() {
	// 定义打印数据
	numberList := []int{1, 2, 3, 4, 5, 6, 7, 8, 9, 10}
	// 定义两个channel用于互相通信
	ch1 := make(chan bool)
	ch2 := make(chan bool)
	// 定义waitGroup实现同步
	wg := &sync.WaitGroup{}
	wg.Add(2)
	go func() {
		Print1(numberList, wg, ch1, ch2)
	}()
	go func() {
		Print2(numberList, wg, ch1, ch2)
	}()
	wg.Wait()
}

func Print1(numberList []int, wg *sync.WaitGroup, ch1, ch2 chan bool) {
	defer wg.Done()
	for _, v := range numberList {
		if v%2 != 0 {
			fmt.Println("goroutine 1 printer:", v)
			ch2 <- true
			<-ch1
		}
	}
}

func Print2(numberList []int, wg *sync.WaitGroup, ch1, ch2 chan bool) {
	defer wg.Done()
	for _, v := range numberList {
		if v%2 == 0 {
			<-ch2
			fmt.Println("goroutine 2 printer:", v)
			ch1 <- true
		}
	}
}