29 lines
365 B
Markdown
29 lines
365 B
Markdown
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# Golang Chan 超时
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```go
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package main
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import (
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"fmt"
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"time"
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)
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var ch chan int = make(chan int, 1)
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func main() {
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go aaa()
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select {
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case <-ch: //拿到锁
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fmt.Println("call")
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case <-time.After(5 * time.Second): //超时5s
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fmt.Println("5 sec call")
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}
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}
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func aaa() {
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time.Sleep(time.Second * 3)
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ch <- 1
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}
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```
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