20 lines
237 B
Go
20 lines
237 B
Go
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package main
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import "fmt"
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func main() {
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ch := make(chan int, 1)
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for done := false; !done; {
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select {
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default:
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fmt.Println(3)
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done = true
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case <-ch:
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fmt.Println(2)
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ch = nil
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case ch <- 1:
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fmt.Println(1)
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}
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}
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}
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