diff --git a/README.md b/README.md
index 4e5cd53..95ff53d 100644
--- a/README.md
+++ b/README.md
@@ -38,12 +38,11 @@ func (s *EchoImpl) Echo(ctx context.Context, req *api.Request) (resp *api.Respon
 }
 
 func main() {
-	klog.SetLevel(klog.LevelDebug)
 	nacosClient, err := nacos.NewClient(nacos.Options{})
 	if err != nil {
 		panic(err)
 	}
-	serviceName := "ServiceName"
+	serviceName := "ServiceName" // your server-side service name
 	svr := echo.NewServer(
 		new(EchoImpl),
 		server.WithServerBasicInfo(&rpcinfo.EndpointBasicInfo{ServiceName: serviceName}),
@@ -85,16 +84,14 @@ func (cl *configLog) Apply(opt *utils.Options) {
 }
 
 func main() {
-	klog.SetLevel(klog.LevelDebug)
-
 	nacosClient, err := nacos.NewClient(nacos.Options{})
 	if err != nil {
 		panic(err)
 	}
 
     cl := &configLog{}
-	serviceName := "ServiceName"
-	clientName := "ClientName"
+	serviceName := "ServiceName" // your server-side service name
+	clientName := "ClientName"   // your client-side service name
 	client, err := echo.NewClient(
 		serviceName,
 		client.WithHostPorts("0.0.0.0:8888"),
diff --git a/README_CN.md b/README_CN.md
index c9b124b..1718160 100644
--- a/README_CN.md
+++ b/README_CN.md
@@ -38,12 +38,11 @@ func (s *EchoImpl) Echo(ctx context.Context, req *api.Request) (resp *api.Respon
 }
 
 func main() {
-	klog.SetLevel(klog.LevelDebug)
 	nacosClient, err := nacos.NewClient(nacos.Options{})
 	if err != nil {
 		panic(err)
 	}
-	serviceName := "ServiceName"
+	serviceName := "ServiceName" // your server-side service name
 	svr := echo.NewServer(
 		new(EchoImpl),
 		server.WithServerBasicInfo(&rpcinfo.EndpointBasicInfo{ServiceName: serviceName}),
@@ -85,16 +84,14 @@ func (cl *configLog) Apply(opt *utils.Options) {
 }
 
 func main() {
-	klog.SetLevel(klog.LevelDebug)
-
 	nacosClient, err := nacos.NewClient(nacos.Options{})
 	if err != nil {
 		panic(err)
 	}
 
 	cl := &configLog{}
-	serviceName := "ServiceName"
-	clientName := "ClientName"
+	serviceName := "ServiceName" // your server-side service name
+	clientName := "ClientName"   // your client-side service name
 	client, err := echo.NewClient(
 		serviceName,
 		client.WithHostPorts("0.0.0.0:8888"),
diff --git a/example/client/main.go b/example/client/main.go
index 3140c7f..68a3e66 100644
--- a/example/client/main.go
+++ b/example/client/main.go
@@ -40,8 +40,6 @@ func (cl *configLog) Apply(opt *utils.Options) {
 }
 
 func main() {
-	klog.SetLevel(klog.LevelDebug)
-
 	nacosClient, err := nacos.NewClient(nacos.Options{})
 	if err != nil {
 		panic(err)
@@ -49,8 +47,8 @@ func main() {
 
 	cl := &configLog{}
 
-	serviceName := "ServiceName"
-	clientName := "ClientName"
+	serviceName := "ServiceName" // your server-side service name
+	clientName := "ClientName"   // your client-side service name
 	client, err := echo.NewClient(
 		serviceName,
 		client.WithHostPorts("0.0.0.0:8888"),
diff --git a/example/server/main.go b/example/server/main.go
index 371d1d4..9e449a7 100644
--- a/example/server/main.go
+++ b/example/server/main.go
@@ -40,12 +40,11 @@ func (s *EchoImpl) Echo(ctx context.Context, req *api.Request) (resp *api.Respon
 }
 
 func main() {
-	klog.SetLevel(klog.LevelDebug)
 	nacosClient, err := nacos.NewClient(nacos.Options{})
 	if err != nil {
 		panic(err)
 	}
-	serviceName := "ServiceName"
+	serviceName := "ServiceName" // your server-side service name
 	svr := echo.NewServer(
 		new(EchoImpl),
 		server.WithServerBasicInfo(&rpcinfo.EndpointBasicInfo{ServiceName: serviceName}),