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#2
邓士林2013-04-26 21:17
#include<iostream>
#include<ctime>
using namespace std;
#define N 3
//最大操作数
void symbol(const int &x)
{ switch(x)
{ case 0:cout<<"+";break;
case 1:cout<<"-";break;
case 2:cout<<"*";break;
case 3:cout<<"/";break;
default: ; }}
void main()
{ int i,j;
unsigned int r;
srand((unsigned)time(NULL));
for(i=0;i<100;i++)
{ cout<<rand()%100;
r=rand()%N;
for(j=0;j<r;j++)
{ symbol(rand()%4);
cout<<rand()%100;
}
cout<<"="<<endl;
}
}
这是一个模板，你修改下
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