Introduction - If you have any usage issues, please Google them yourself
1, a number of students in classes over 50 people, set up courses for students in grade six and above 2, from the keyboard input of a class grade, and inquiries, input, modify, browse, delete, statistics 3, according to subjects and Statistics students score below 60 60-69 ,70-79 minutes ,80-89 sub-90-99 points, the number of 100 points, and displayed on the screen.