go 语言 goroutine通信
作者:互联网
示例demo52
package main
import ( "fmt" )
func calc(taskChan chan int, resChan chan int, exitChan chan bool) { for v := range taskChan { flag := true for i := 2; i < v; i++ { if v%i == 0 { flag = false break } } if flag { //值放到resChan 通道里 resChan <- v } } fmt.Println("exit") exitChan <- true }
func main() { intChan := make(chan int, 1000) //初始化 intchan 通道 长度1000 resultChan := make(chan int, 1000) //初始化 resultChan通道 长度1000 closeChan := make(chan bool, 8) go func() { //协程方式放进10000个数到intChan通道里 for i := 0; i < 100000; i++ { intChan <- i } close(intChan) //关闭intChan通道 }()
//启8个协程 运行计算 传入intChan 和resultChan for i := 0; i < 8; i++ { go calc(intChan, resultChan, closeChan) }
//等待所有计算的goroutine全部退出 go func() { for i := 0; i < 8; i++ { <-closeChan } close(closeChan) //关闭closeChan通道 close(resultChan) //关闭resultChan通道 }()
//循环 resultChan遍历数据 for v := range resultChan { fmt.Println(v) }
}
import ( "fmt" )
func calc(taskChan chan int, resChan chan int, exitChan chan bool) { for v := range taskChan { flag := true for i := 2; i < v; i++ { if v%i == 0 { flag = false break } } if flag { //值放到resChan 通道里 resChan <- v } } fmt.Println("exit") exitChan <- true }
func main() { intChan := make(chan int, 1000) //初始化 intchan 通道 长度1000 resultChan := make(chan int, 1000) //初始化 resultChan通道 长度1000 closeChan := make(chan bool, 8) go func() { //协程方式放进10000个数到intChan通道里 for i := 0; i < 100000; i++ { intChan <- i } close(intChan) //关闭intChan通道 }()
//启8个协程 运行计算 传入intChan 和resultChan for i := 0; i < 8; i++ { go calc(intChan, resultChan, closeChan) }
//等待所有计算的goroutine全部退出 go func() { for i := 0; i < 8; i++ { <-closeChan } close(closeChan) //关闭closeChan通道 close(resultChan) //关闭resultChan通道 }()
//循环 resultChan遍历数据 for v := range resultChan { fmt.Println(v) }
}
标签:intChan,goroutine,chan,通信,int,func,go,resultChan 来源: https://www.cnblogs.com/chenweihao/p/16611320.html