题目要求是让程序显示1到10之间质数的个数 可我做好后编译显示结果总是不对请帮我看下错在哪
代码如下
using System;
using System.Collections.Generic;
using System.Text;

namespace ConsoleApplication21
{
    class Program
    {
        static void Main(string[] args)
        {
            int i, j, k, a;
            //i=个数 j=循环量 k计数器 a结果


            k = 0;
            for (i = 1; i <= 10; i++)
            {

                for (j = 2; j <= i - 1; j++)
                {
                    if ((i % j )== 0)
                    {
                        k=k+1;
                        break;
                    }
                    Console.WriteLine("num the SUM {0}", i);
                    a = i - k - 2;
                    Console.WriteLine("num is zhishu {0}", a);
                    Console.ReadLine();


编译后显示
i=3
a=1
狂汗不知道错哪了