Description of tasks: design a simple educational administration program, can add, query, display, modify, and delete student information results in all the subjects. Application requirements: 1) can be read from the screen according to the prompt a student performance information and save. Student subjects data file is used to store, sort by student number stored. 2) record changes: can choose to modify the student s name, class and grade, student id cannot be modified. Before you modify, or delete users need further confirmation, after confirmed. 3) can the student id or name query student performance and display. 4) statistics: statistics can all student s total grade and rank in the class Statistical average grades and pass in all subjects. 5) requires a friendly message function, such as student number is only 10 digits, input errors should be prompted to input Query data does not exist when prompting the user Add, delete, modify the data after indicates success.

1.cpp

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