小学生数学测验系统c语言程序 要求运用加减乘除四则运算，输入登录ID:形如AB1234后进入选择界面：1、答题2、查看往次成绩3、退出。要求所有数小于一百且都为整数。随机生成数字。-Primary school math test system c language program requires the use of addition, subtraction four operations, enter the login ID: shaped like AB1234 into the