#include<stdio.h>#include<stdlib.h>#include<time.h>int i=0,j=0;void jia(){ int a,b,m; srand(time(NULL)); a=1+rand()%100; b=1+rand()%100; printf("%d
",a); printf("%d
",b); printf("a+b=?
"); printf("请输入运算结果
"); scanf("%d",&m); if(m==a+b) { printf("恭喜你答对了
"); i++; } else { printf("你答案有错误
"); j++; } }void jian(){ int a,b,m; srand(time(NULL)); a=1+rand()%100; b=1+rand()%100; if(a<b) { int t=0; t=a;a=b;b=t; } printf("%d
",a); printf("%d
",b); printf("a-b=?
"); printf("请输入运算结果
"); scanf("%d",&m); if(m==a-b) { printf("恭喜你答对了
"); i++; } else { printf("你答案有错误
"); j++; } }void cheng(){ int a,b,m; srand(time(NULL)); a=1+rand()%20; b=1+rand()%20; printf("%d
",a); printf("%d
",b); printf("a*b=?
"); printf("请输入运算结果
"); scanf("%d",&m); if(m==a*b) { printf("恭喜你答对了
"); i++; } else { printf("你答案有错误
"); j++; } }void chu(){ int a,b,m; srand(time(NULL)); a=1+rand()%100; b=1+rand()%100; if(b==0) { b=1+rand()%100; } if(a<b) { int t=0; t=a;a=b;b=t; } while(a%b!=0) { a=1+rand()%100; b=1+rand()%100; } printf("%d
",a); printf("%d
",b); printf("a/b=?
"); printf("请输入运算结果
"); scanf("%d",&m); if(m==a/b) { printf("恭喜你答对了
"); i++; } else { printf("你答案有错误
"); j++; } }<br>int main(){ int m,n=0; while(1) { printf("1.加法运算
"); printf("2.减法运算
"); printf("3.乘法运算
"); printf("4.除法运算
"); printf("请选择"); scanf("%d", &m); switch(m) { case 1:jia();break; case 2:jian();break; case 3:cheng();break; case 4:chu();break; } printf("5.请重新选择
"); printf("6.结束
"); scanf("%d", &n); if(n==6) break; } printf("你回答题的总数%d和正确的个数%d
",i+j,i); return 0;} 加法运算界面
减法运算界面
乘法运算界面
除法运算界面
因为我的基础有限，所以自己写不出很严谨的运算程序，所以我借鉴了一下别的程序。做出了这套简单的四则运算程序！