大大来帮忙看看，帮帮新手吧

Question

随机生成10个不重复的随机数，运行完说我数组下标越界，怎么检查也检查不出，帮忙看看啊，谢谢
using System;
using System.Collections.Generic;
using System.Text;namespace suiji
{
    class Program
    {
        static void Main(string[] args)
        {
            int i, j;
            int[] num = new int[10];
            Random r = new Random();
            for (i = 0; i < 10; i++)
            {
                int k = r.Next(1, 11);
                int n=0;
                for (j = 0; j < i; i++)
                {
                    if (num[j] == k)
                    {
                        n=n+1;
                    }
                }
                if (n == 0)
                {
                    num[i] = k;
                }
                else 
                {
                    i = i - 1;
                }
            }
            for (i = 0; i < 10; i++)
            {
                Console.WriteLine(num[i]);
            }
        }
    }
}

Answer 1

namespace   suiji 
{ 
        class   Program 
        { 
                static   void   Main(string[]   args) 
                { 
                        int   i,   j; 
                        int[]   num   =   new   int[10]; 
                        Random   r   =   new   Random(); 
                        for   (i   =   0;   i   <   10;   i++) 
                        { 
                                int   k   =   r.Next(1,   11); 
                                int   n=0; 
                                for   (j   =   0;   j   <   i;   i++) ---错误！！怎么是i++!自己改
                                { 
                                        if   (num[j]   ==   k) 
                                        { 
                                                n=n+1; 
                                        } 
                                } 
                                if   (n   ==   0) 
                                { 
                                        num[i]   =   k; 
                                } 
                                else   
                                { 
                                        i   =   i   -   1; 
                                } 
                        } 
                        for   (i   =   0;   i   <   10;   i++) 
                        { 
                                Console.WriteLine(num[i]); 
                        } 
                } 
        } 
}