36 lines
477 B
Go
36 lines
477 B
Go
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package main
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import (
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"fmt"
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"sync"
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)
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// START OMIT
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func main() {
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r := []int{1, 2, 3, 4}
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var group sync.WaitGroup
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for _, p := range r {
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group.Add(1)
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go func(p int) {
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defer group.Done()
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fmt.Println(p)
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}(p)
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fmt.Println("wait")
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group.Wait() // HL
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}
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fmt.Println("done\n")
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for _, p := range r {
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group.Add(1)
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go func(p int) {
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defer group.Done()
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fmt.Println(p)
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}(p)
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}
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fmt.Println("wait")
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group.Wait() // HL
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fmt.Println("done")
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}
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// END OMIT
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