1.channel

2.buffered channel

3.range關鍵字接收channel中的內容

func worker(id int, c chan int) {for n := range c {fmt.Printf("Worker %d received %c\n",id, n)} }func createWorker(id int) chan<- int {c := make(chan int)go worker(id, c)return c }func chanDemo() {var channels [10]chan<- intfor i := 0; i < 10; i++ {channels[i] = createWorker(i)}for i := 0; i < 10; i++ {channels[i] <- 'a' + i}for i := 0; i < 10; i++ {channels[i] <- 'A' + i}time.Sleep(time.Millisecond) }func bufferedChannel() {c := make(chan int, 3)go worker(0, c)c <- 'a'c <- 'b'c <- 'c'c <- 'd'time.Sleep(time.Millisecond) }func channelClose() {c := make(chan int)go worker(0, c)c <- 'a'c <- 'b'c <- 'c'c <- 'd'close(c)time.Sleep(time.Millisecond) }func main() {fmt.Println("Channel as first-class citizen")chanDemo()fmt.Println("Buffered channel")bufferedChannel()fmt.Println("Channel close and range")channelClose() }

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