using?System;
using?System.Collections.Generic;
using?System.ComponentModel;
using?System.Data;
using?System.Drawing;
using?System.Linq;
using?System.Text;
using?System.Windows.Forms;
using?System.IO;

namespace?comparefiles
{
????public?partial?class?文件對比工具?:?Form
????{
????????public?文件對比工具（）
????????{
????????????InitializeComponent（）;
????????}

????????private?void?button1_Click（object?sender?EventArgs?e）
????????{
????????????this.openFileDialog1.ShowDialog（）;
????????????if?（this.openFileDialog1.FileName.Trim（）?!=?““）
????????????????this.textBox1.Text?=?this.openFileDialog1.FileName.Trim（）;
????????????
????????}

????????private?void?button2_Click（object?sender?EventArgs?e）
????????{
????????????this.openFileDialog2.ShowDialog（）;
????????????if?（thi