CES upgraded the system in April 2022. The system you are currently accessing is available only to users who registered before April 2022. New users, please register at http://www.ces-alpha.org .
使用CES账号,可以随时启动虚拟机,进行编程学习。
如果忘记密码,请通过填写邮件地址重新设置密码。
CES对所有的用户密码进行加密存储,确保使用者的密码安全。