Android Studio network settings
1. After installation, the internal emulator needs to be changed to Chinese according to the above documents.
2. Modify the network connection to the external network
First, modify
1) the network configuration of the mac to only local connections 
2) modify the network DNS in the mac, add
8.8. 8.8 114.114.114.114 10.0.2.3 1.1.1.1
3) Modify the automatic connection in the emulator to select the 3G one, do not select a wifi with auto*,
and then modify the use of the proxy set on the external right side to select the ring and uncheck it
4) Access Baidu through a browser, do not access other sites, it may be blocked and cannot be accessed.