初始化Go学习项目

go-atomic-cpu/cpu_channel_wait.go

@@ -0,0 +1,23 @@
+package main
+
+import (
+	"fmt"
+	"time"
+)
+
+func main() {
+	stop := make(chan struct{})
+
+	go func() {
+		select {
+		case <-stop:
+			fmt.Println("worker 收到停止信号，退出")
+		}
+	}()
+
+	time.Sleep(2 * time.Second)
+	fmt.Println("main: 关闭 stop channel")
+	close(stop)
+
+	time.Sleep(1 * time.Second)
+}