update zh-cn/application-dev/connectivity/http-request.md.

Signed-off-by: Nzengyawen <zengyawen1@huawei.com>

zh-cn/application-dev/connectivity/http-request.md

@@ -74,4 +74,5 @@ httpRequest.request(
 
 ## 相关实例
 针对HTTP数据请求，有以下相关实例可供参考：
-- [`Http`：数据请求（eTS）（API8）](https://gitee.com/openharmony/app_samples/tree/master/Network/Http)
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+- [`Http`：数据请求（eTS）（API8）](https://gitee.com/openharmony/app_samples/tree/master/Network/Http)
+- [使用HTTP实现与服务端通信（eTS）（API9）](https://gitee.com/openharmony/codelabs/tree/master/NetworkManagement/SmartChatEtsOH)
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