Reapply "题目记录.md"

This reverts commit ef954349d4.

goroutine/task.go

@@ -0,0 +1,33 @@
+package goroutine
+
+import (
+	"context"
+	"fmt"
+	clientv3 "go.etcd.io/etcd/client/v3"
+	"goLearn/model"
+	"time"
+)
+
+func Runtask(ctx context.Context) {
+	ctx2 := ctx.Value("value").(model.Task)
+	fmt.Println(ctx2.Id)
+
+	config := clientv3.Config{
+		Endpoints:   []string{"127.0.0.1:2379"}, // etcd节点地址，集群模式可填多个
+		DialTimeout: 5 * time.Second,            // 连接超时时间
+		// 如需认证，添加以下配置
+		// Username: "root",
+		// Password: "123456",
+	}
+
+	// 2. 建立连接
+	client, err := clientv3.New(config)
+	if err != nil {
+		fmt.Printf("连接etcd失败: %v\n", err)
+		return
+	}
+	defer client.Close() // 程序退出时关闭连接
+
+	fmt.Println("成功连接到etcd")
+
+}