四则运算

随机生成两个数，并且进行随机运算，改善版：

#include<iostream.h>
#include<stdlib.h>
int main()
{
     int i,j,k,l,t;
     for(i=0;i<30;i++)
    {
            j=rand()%100;
            k=rand()%100;
            l=rand()%4;
           if(j<k)
           {
                 t=j;
                 j=k;
                 k=t;
           }
           if(l==0)
                cout<<j<<‘+‘<<k<<‘=‘<<endl;
           if(l==1)
                cout<<j<<‘-‘<<k<<‘=‘<<endl;
           if(l==2)
                cout<<j<<‘*‘<<k<<‘=‘<<endl;
           if(l==3)
                cout<<j<<‘/‘<<k<<‘=‘<<endl;
      }
      return 0;
}

四则运算

原文：http://www.cnblogs.com/benboerba/p/4320670.html