Online classroom learning management system asp version PC version

From the initial conception to the completion of this system, it took more than a year and many versions were made, but none of them were satisfactory. The main reason is that I am too lazy. I want to achieve the purpose of teaching in class and save trouble, so I came up with this gadget. The system is mainly made for Huan Zhang, who I am currently taking classes. I am also learning by doing in terms of code. It may be too rough and unsatisfactory. Please give me an explanation and just give it a try! ! The program script does not filter the submitted data. One reason is laziness, and the other reason is that this system is not open to the public and there are no security issues. Teachers are professionals and will not enter data randomly to make the system go wrong; There is a problem for students to crack, such as changing IP or downloading games, etc. There is no better solution yet. As far as changing IP is concerned, my original intention is to verify the MAC address, but ASP does not seem to have this function, and other languages ​​​​do not have it. Yes, so. . . . There are still some aspects that need to be improved. Since the basic functions have been implemented, it seems that there is no motivation to continue to work on it. I will give it to everyone. Use it if it can be used, and throw it away if it cannot be used! If you think this system is okay and needs improvement, please contact me to obtain the source code.