channel的几种用法

channel/001/main.go

@@ -0,0 +1,40 @@
+package main
+
+import (
+	"fmt"
+	"math/rand"
+	"os"
+	"os/signal"
+	"time"
+)
+
+// 两个服务一直产生数据
+// 希望有数据产生就拿这些数据做一些处理
+
+// 切换着打印，从1到2
+func main() {
+	m1, m2 := genMsg("service1"), genMsg("service2")
+	quit := make(chan os.Signal, 1)
+	go func() {
+		for {
+			fmt.Println(<-m1)
+			fmt.Println(<-m2)
+		}
+	}()
+	signal.Notify(quit, os.Interrupt)
+	<-quit
+}
+
+func genMsg(name string) <-chan string {
+	c := make(chan string)
+	go func() {
+		i := 0
+		for {
+			time.Sleep(time.Duration(rand.Intn(2000)) * time.Millisecond)
+			c <- fmt.Sprintf("the service name is %v,the message is %v",
+				name, i)
+			i++
+		}
+	}()
+	return c
+}