28 lines
421 B
Go
28 lines
421 B
Go
package main
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import "fmt"
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func main() {
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c := make(chan int)
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go func() {
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for i := 0; i < 5; i++ {
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c <- i
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}
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// close可以关闭一个channel
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close(c)
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}()
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for {
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// 如果ok为true表示channel没有关闭，如果ok为false表示channel已经关闭
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if data, ok := <-c; ok {
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fmt.Println(data)
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} else {
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fmt.Println("channel c 已被关闭")
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break
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}
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}
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fmt.Println("Main finished ...")
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}
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