输入一个正整数求它的所有约数  除了1 和 它自己本身；例如：输入一个12   它的约数就有 2、3、4、6；
请高手把代码发下，谢谢！

想了想，头疼，关注一下

要求的是n的话
那么用n%i==0；（i取2---sqrt（n））

错了。。。i应该是到n/2

static void Main(string[] args)
        {
            int n;
            
            Console.WriteLine("请输入一个正整数：");
            n = int.Parse(Console.ReadLine());
            if (n % 2 == 0)
            {
                for (int i = 2; i <= n / 2; i++)
                {
                    if (n % i == 0)
                    { Console.WriteLine("{0}", i); }
                }
            }
           
            if (n % 2 == 1)
            {
                for (int i = 3; i <= (n - 1) / 2; i++)
                {
                    if (n % i == 0)
                    { Console.WriteLine("{0}", i); }
                }
            }
            
               
            
            Console.ReadLine();

static void Main(string[] args)
        {
            int n;
            
            Console.WriteLine("请输入一个正整数：");
            n = int.Parse(Console.ReadLine());
            if (n % 2 == 0)
            {
                for (int i = 2; i <= n / 2; i++)
                {
                    if (n % i == 0)
                    { Console.WriteLine("{0}", i); }
                }
            }
           
            if (n % 2 == 1)
            {
                for (int i = 3; i <= (n - 1) / 2; i++)
                {
                    if (n % i == 0)
                    { Console.WriteLine("{0}", i); }
                }
            }
            
               
            
            Console.ReadLine();

using System;
using System.Collections.Generic;
using
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;

namespace WindowsApplication3
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }
        private void button1_Click(object sender, EventArgs e)
        {   int i,m;
            m=Convert.ToInt16(textBox1.Text);
            for (i = 2; i < m; i++)
            {
                if (m % i == 0)
                  textBox2.Text =textBox2.Text+"   "+ Convert.ToString(i);
               
            }
        }
    }
}

想多了，楼上正解