read data from a closed chan with has data

最新推荐文章于 2025-06-07 17:28:03 发布

原创最新推荐文章于 2025-06-07 17:28:03 发布

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#golang

func closeChan() {
	command := make(chan bool, 5)
	command <- true
	command <- true
	command <- true
	command <- true
	close(command)
	fmt.Printf("close chan has finished\n")
	for i := 0; i < 10; i++ {
		fmt.Printf("from a closed chan:%v\n", <-command)
		/**
		close chan has finished
		from a closed chan:true
		from a closed chan:true
		from a closed chan:true
		from a closed chan:true
		from a closed chan:false
		from a closed chan:false
		from a closed chan:false
		from a closed chan:false
		from a closed chan:false
		from a closed chan:false
		*/
	}
}

Conclusion:

After reading the existing data in chan, it will be the dafualt value