Student management system of Nantong University user experience

The educational administration system of Nantong University is a system to facilitate the students to inquire the basic requirements of their grades and courses, so long as the corresponding instructions are entered, the corresponding requirements will be executed according to the instruction.

But in the input instructions, I think it should be modified, because no matter what input he will jump out of the same result, every time there is a large amount of things, I think if the wrong command can jump out of the prompt "Please enter the correct format" "You want to enter the format is ..." This will be convenient and simple.

Student management system of Nantong University user experience