编写一个能生成小学四则运算题目的运算

#include
#include
#include
int i=0,j=0;

void jia()
{
    int a,b,m;
    srand(time(NULL));
    a=1+rand()%100;
    b=1+rand()%100;
    printf( "%d\n" ,a);
    printf( "%d\n" ,b);
    printf( "a+b=?\n" );
    printf( "请输入运算结果\n" );
    scanf( "%d" ,&m);
    if (m==a+b)
    {
        printf( "恭喜你答对了\n" );
        i++;
    }
    else
    {
        printf( "你答案有错误\n" );
        j++;
    }

}

void jian()
{
    int a,b,m;
    srand(time(NULL));
    a=1+rand()%100;
    b=1+rand()%100;
    if (a

    {
        int t=0;
        t=a;a=b;b=t;
    }
    printf( "%d\n" ,a);
    printf( "%d\n" ,b);
    printf( "a-b=?\n" );
    printf( "请输入运算结果\n" );
    scanf( "%d" ,&m);
    if (m==a-b)
    {
        printf( "恭喜你答对了\n" );
        i++;
    }
    else
    {
        printf( "你答案有错误\n" );
        j++;
    }

}
void cheng()
{
    int a,b,m;
    srand(time(NULL));
    a=1+rand()%20;
    b=1+rand()%20;
    printf( "%d\n" ,a);
    printf( "%d\n" ,b);
    printf( "a*b=?\n" );
    printf( "请输入运算结果\n" );
    scanf( "%d" ,&m);
    if (m==a*b)
    {
        printf( "恭喜你答对了\n" );
        i++;
    }
    else
    {
        printf( "你答案有错误\n" );
        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

    {
        int t=0;
        t=a;a=b;b=t;
    }
    while (a%b!=0)
    {
        a=1+rand()%100;
        b=1+rand()%100;
    }
    printf( "%d\n" ,a);
    printf( "%d\n" ,b);
    printf( "a/b=?\n" );
    printf( "请输入运算结果\n" );
    scanf( "%d" ,&m);
    if (m==a/b)
    {
        printf( "恭喜你答对了\n" );
        i++;
    }
    else
    {
        printf( "你答案有错误\n" );
        j++;
    }

}

int main()
{
    int m,n=0;
    while (1)
    {
        printf( "1.加法运算\n" );
        printf( "2.减法运算\n" );
        printf( "3.乘法运算\n" );
        printf( "4.除法运算\n" );
        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\n" );
        printf( "6.结束\n" );
        scanf( "%d" , &n);
        if (n==6) break ;
    }
    printf( "你回答题的总数%d和正确的个数%d\n" ,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！

转载于:https://www.cnblogs.com/mahaoran/p/5278445.html