31 lines
450 B
Go
31 lines
450 B
Go
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package main
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import (
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"fmt"
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"math/rand"
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"runtime"
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"sync"
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"time"
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)
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func demo(id int, wait *sync.WaitGroup) {
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for i := 0; i < 100; i++ {
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sleep := rand.Intn(10) + 1
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runtime.Breakpoint()
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fmt.Printf("id: %d step: %d sleeping %d\n", id, i, sleep)
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time.Sleep(time.Duration(sleep) * time.Millisecond)
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}
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wait.Done()
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}
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func main() {
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wait := new(sync.WaitGroup)
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wait.Add(1)
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wait.Add(1)
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go demo(1, wait)
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go demo(2, wait)
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wait.Wait()
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}
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