#include <iostream>

using namespace std;

int main()
{
 int  a[10];
 int number[4];
 
 for (int i = 0; i < 10; i++)
 {
  a[i] = i+1;
 }
 
 srand(unsigned(time(NULL)));
 
 for (int i = 0; i < 4; i++)
 {
  do
  {
   number[i] = rand()%10;
  } while(0 == a[number[i]]);
  a[number[i]] = 0;
 }
 
 for (int i = 0; i < 4; i++)
 {
  cout << number[i];
 }
 
 return 0;
}

//随手写了个.没特别讲效率...但应该不错了 :)

//ps:怎么还是斜体...看来dvbbs 7.1还是和原来版本一样.对firefox支持不太好....

[此贴子已经被作者于2006-6-9 18:44:12编辑过]