Microsoft Visual Studio 2005以上版本
核心程序代码！！！**********************************************************************using System;using System.Collections.Generic;using System.ComponentModel;using System.Data;using System.Drawing;using System.Text;using System.Windows.Forms;namespace sum{ public partial class Form1 : Form { public Form1() { InitializeComponent(); } private void button1_Click(object sender, EventArgs e) { int a = Convert.ToInt32(textBox1.Text); int n = Convert.ToInt32(textBox2.Text); int b = a; int sum =0; textBox3.Text = b.ToString(); sum = sum + a; for (int i = 1; i <= n; i++) { if (i != 1) { sum = sum + a; textBox3.Text +='+' + a; } a = 10 * a + b; } textBox3.Text = textBox3.Text + '=' + sum; } }}**********************************************************************
本程序个人编写，如有雷同，纯属巧合！！！