GO chan 編程

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package mainimport ("fmt""math/rand""sync")func main() {numberChan1 := make(chan int64, 3)numberChan2 := make(chan int64, 3)numberChan3 := make(chan int64, 3)var waitGroup sync.WaitGroupwaitGroup.Add(3)go func() {for n := range numberChan1 {if n%2 == 0 {numberChan2 <- n} else {fmt.Printf("Filter %d. [filter 2]\n", n)}}close(numberChan2)waitGroup.Done()}()go func() {for n := range numberChan2 {if n%5 == 0 {numberChan3 <- n} else {fmt.Printf("Filter %d. [filter 5]\n", n)}}close(numberChan3)waitGroup.Done()}()go func() {for n := range numberChan3 {fmt.Println("n = ", n)}waitGroup.Done()}()for i := 0; i < 100; i++ {numberChan1 <- rand.Int63n(100)}close(numberChan1)waitGroup.Wait()}