设置代理：
adb shell settings put global http_proxy ip:port
如：
adb shell settings put global http_proxy 192.168.200.102:8888
adb shell settings put global http_proxy 192.168.43.127:8887
移除代理：
adb shell settings delete global http_proxy
adb shell settings delete global global_http_proxy_host
adb shell settings delete global global_http_proxy_port
重启设备后生效，adb reboot