diff --git a/net/ghttp/ghttp_z_example_test.go b/net/ghttp/ghttp_z_example_test.go
new file mode 100644
index 000000000..70dff71ae
--- /dev/null
+++ b/net/ghttp/ghttp_z_example_test.go
@@ -0,0 +1,29 @@
+// Copyright 2020 gf Author(https://github.com/gogf/gf). All Rights Reserved.
+//
+// This Source Code Form is subject to the terms of the MIT License.
+// If a copy of the MIT was not distributed with this file,
+// You can obtain one at https://github.com/gogf/gf.
+
+package ghttp_test
+
+import (
+	"github.com/gogf/gf/frame/g"
+	"github.com/gogf/gf/net/ghttp"
+)
+
+func Example_helloWorld() {
+	s := g.Server()
+	s.BindHandler("/", func(r *ghttp.Request) {
+		r.Response.Write("hello world")
+	})
+	s.SetPort(8999)
+	s.Run()
+}
+
+func Example_clientDump() {
+	response, err := g.Client().Get("https://goframe.org")
+	if err != nil {
+		panic(err)
+	}
+	response.RawDump()
+}
diff --git a/os/glog/glog_z_example_test.go b/os/glog/glog_z_example_test.go
new file mode 100644
index 000000000..17de0a755
--- /dev/null
+++ b/os/glog/glog_z_example_test.go
@@ -0,0 +1,22 @@
+// Copyright 2020 gf Author(https://github.com/gogf/gf). All Rights Reserved.
+//
+// This Source Code Form is subject to the terms of the MIT License.
+// If a copy of the MIT was not distributed with this file,
+// You can obtain one at https://github.com/gogf/gf.
+
+package glog_test
+
+import (
+	"context"
+	"github.com/gogf/gf/frame/g"
+)
+
+func Example_context() {
+	ctx := context.WithValue(context.Background(), "Trace-Id", "123456789")
+	g.Log().Ctx(ctx).Error("runtime error")
+
+	// May Output:
+	// 2020-06-08 20:17:03.630 [ERRO] {Trace-Id: 123456789} runtime error
+	// Stack:
+	// ...
+}