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| package main
import ( "fmt" "runtime" "sync" )
var wg sync.WaitGroup
func a() { defer wg.Done() for i := 1; i < 10; i++ { fmt.Println("A:", i) } }
func b() { defer wg.Done() i := 0 for { i ++ } }
func main() { runtime.GOMAXPROCS(1) wg.Add(5) go a() go b() go b() go b() go b() wg.Wait() }
|