sleep 1s to avoid too many requests

[RuixiangJiang]

• choose each class in the list only once to make the following classes have more opportunities to be chosen
• sleep one second between two threads
• remove some description messages when running the program

[GhostFrankWu]

意见

由于Tis开放时间不太稳定(有概率在12:57-13:01期间开放而非13:00)，所以先前没频率限制时候手动操作还是必要的

但我也不确定现在哪种策略更好点，所以我的想法是都加上，然后给个开关

修改的必要性

如果脚本不等的话，你的是对同一课程连续发三条，只有第一条有效

其实可以多开，就是一直改class.txt然后运行多个脚本

其他事项

• 请不要在最终的代码中包含被注释的测试代码
• 请保留verify=False以应对Tis证书不完整的情况
• 我更希望保留输入密码不显示的设定

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My comment

Since the opening time of Tis is not stable (there is a chance that it will be open between 12:57-13:01 instead of 13:00), manual operation was still necessary when there was no frequency limit before.

But I am not sure which strategy is better now, so my idea is to add both and then give a switch choice to user.

Necessity

If the scripts do not sleep and wait, it'll send three consecutive messages for the same course, and only the first one is valid.

In fact, you can run scirpt multiple times by keep changing class.txt and only leave one class at the same time

Other Suggestions:

• Please do not include the commented test code in the final code
• Please keep verify=False to handle the case where the Tis certificate is incomplete
• I prefer not to display the password when entering it