Tsinghua校园网连接脚本，只在Window 10中测试过。
Tsinghua校园网登录：
python ./login.py <username> <password>
Tsinghua校园网断开：
python ./logout.py
Tsinghua校园网掉线自动重连：
python ./connect.py <username> <password>
python ./connect.py <username> <password> [wlan-interface]
Examples:
python ./connect.py test 1234567
python ./connect.py test 1234567 "Wireless Network Connection"
python ./connect.py test 1234567 "无线网络连接 4"