小学生计算机辅助教学系统（苏小红版C语言程序设计第六章实验题）

自动生成10以内的四则运算，数以及运算符号都是随机的，每次进行10次，当正确率高于75 时，结束测试。为解决学生的疲劳问题，要通过人机对话来吸引学生的注意力，使用随机数产生1-4之间的随机数，为学生每次的答案输出不同评价。-Computer-aided primary school teaching system

Automatically generates within 10 arithmetic, number and arithmetic symbols are random, each 10 times, when the correct rate at 75 , the end of the test. To solve the problem of fatigue of students, to attract the attention of students through interactive, using a random number generator random number between 1-4 for each student answers a different evaluation of the output.