用贪心算法编写的有关最大级差问题的java程序-greedy algorithm used in the preparation of the largest differential in java programs

用Java写的学生成绩管理系统界面，具有添加学生信息，修改删除查找学生信息，最大容量为100人-Written in Java student achievement management system interface, has to add student information, modify delete student information search, the maximum capacity for 100 people