Introduction - If you have any usage issues, please Google them yourself
1. 5 students, each student data including student number, name, course grades, five students in the data input from the keyboard, requires printing (including a three-course total grade point average, and the highest score of the student' s data name, student number, course grades, average scores). Requires an input function input results Everage score average function max function to find the highest score student data data of students' overall average score and the highest score in the main function output.