教师国培自动挂时间使用，以前写的，现在不知道能不能使用了，只供技术交流使用。-Teacher s training automatically hang time, wrote before, now do not know can not be used, only for technical exchanges with.

在三年前做的一个破解极域电子教室的程序,内包含强退教师端,查看学生端密码,内网聊天,共享文件等功能-Three years ago to do a break very domain of electronic classroom program, and contains strong back teachers end, students end view passwords, network chat, share files and other functions