小程序本地调试正常，真机调试也是正常的，为什么上传后出现网络请求错误，这是什么问题？

AI助手支持GPT4.0

小程序本地调试正常，真机调试也是正常的，为什么上传后出现网络请求错误，这是什么问题？The local debugging of the applet is normal, and the real machine debugging is also normal. Why is there a network request error after uploading? What is the problem?

The system code has been deployed on Alibaba cloud server. The domain name and API on the server are called locally. The real machine debugging is also normal, but the "network request error" is displayed after uploading. Why?

回答：