代码演示
package main import "fmt" import "time" func main() { c1 := make(chan string) c2 := make(chan string) go func() { time.Sleep(time.Second * 1) c1 <- "one" }() go func() { time.Sleep(time.Second * 2) c2 <- "two" }() for i := 0; i < 2; i++ { select { case msg1 := <-c1: fmt.Println("received", msg1) case msg2 := <-c2: fmt.Println("received", msg2) } } }
代码运行结果
received one received two
代码解读
- go语言的通道选择器(select)可以同时等待多个通道操作
- 以上例子就是利用关键字select同时等待创建的两个通道的值
- 对于select语句而言,它会不断的检测通道是否有值传过来,一旦发现传过来,立刻获取并输出
原文地址:https://www.cnblogs.com/Joestar/p/8799255.html
时间: 2024-10-11 02:23:32