请问大家我这个求素数的代码有什么问题 咋看看不出问题呀！

Question

using System;
using System.Collections.Generic;
using System.Text;namespace ConsoleApplication17
{
    class Program
    {
        static void Main(string[] args)
        {
            int a, b;
            for (a = 2; a < 100; a++)
            {
                                for (b = 2; b < a+1; b++)
                {
                    if (a % b == 0)
                    {                                                if (b != a) 
                        
         break;
                            else 
                             Console.WriteLine(a);
                           
                       
                    }
                }
                
            }
        }
    }
}

Answer 1

可以编译呀
在c++ dev5.0下
#include<iostream.h>
using namespace std ;
int main()
{
    int a, b;
    for(a=2;a<100;a++)
    {
        for(b=2;b<a+1;b++)
        {
            if(a%b==0)
            {
             if(b!=a)
             break ;
             else
             //printf("素数....%d ",a );
                
             cout<< a;     
             cout<<"....\n";
                      }              
                          }              
                      }
          // for(;;) {cout<<"素数......\n";       }     
                 
         system("pause");
         return 0;              
    }