It's a little complicated. I have been using the school WLAN recently. You finally used the mobile card issued by the school. You send: CZEDUMM to 10086 to get the password. The account number is your mobile phone number, and you can log in and use it in the electronic bank ~ But before using it, you must open the WLAN and connect with CMCC-EDU, because this is the campus WLAN of our school. So what? You can ask me again if you don't understand ~