package mainimport ("fmt""sync")var chJi chan intvar chOu chan intvar wg sync.WaitGroup func PrintJi() {begin := 1for {if begin > 1 {<-chOu}fmt.Println("协程1:", begin)chJi<-beginbegin += 2if begin == 99 {break}}wg.Done()}func PrintOu() {begin := 2 for {<-chJifmt.Println("协程2:", begin)begin+=2if begin == 100 {break}chOu<-begin}wg.Done()}func main() {chJi = make(chan int)chOu = make(chan int)wg.Add(2)go PrintJi()go PrintOu()wg.Wait() }
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