Why is the weather forecast city of hao 123 always changed to "Beijing"?

This has nothing to do with home page locking, malware, viruses, etc. Does the landlord often empty the temporary files on the web page? After setting the city, the settings are cached in a temporary folder. All your settings will be deleted after emptying the temporary files of the webpage. When you reopen the page, you will reload the information and naturally return to the initial settings. In addition, this function of some websites is automatically judged according to the IP of your machine. It is possible that the IP judgment on the server side is wrong, which has caused this phenomenon.