Current method:
Students queue in the machine room in order already ranked, and query the current student's registration from the list from the list.
Think of new methods:
For the first time, students entered the class (once or twice haven't thought about it), allocate a position. When the student entered the system, he prompted him to choose his name and other information, and the information was uploaded to the server, so his card number is His personal information corresponds to it. The next time it will be seated according to the previously assigned actions.
