netsh interface ip set dns “本地连接” dhcp netsh interface ip set dns “本地连接” static 192.168.x.xxx ipconfig /flushdns，刷新本地的DNS缓存数据 netsh interface set interface “xxxxxx” enabled/disable ipconfig /release 本地连接 关闭网卡 ipconfig /renew 本地连接 启动网卡