学生管理系统+

com.qf.project.mnue 主页面: package com.qf.project.mnue; import java.math.MathContext; import java.util.Random; import java.util.Scanner; import com.qf.project.Service.StudentService; import com.qf.project.StudentSystem.Student; public class StudentMnue { public static void main(String[] args) throws