Limit the number of malicious input

#include <iostream>
using namespace std;
int main ()
{
 int i,input=0;
 do
 {
  printf("请输入正数:\n");
  cin>>input;
  if(input<=0)
  {
   printf("输入错误,请重试\n");
   i++;
  }
  else
  {
   //******;
  }
 }
 while(i<3);
 printf("恶意输入"); 
} 
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Origin blog.csdn.net/huangziguang/article/details/104546463