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?txt讀寫
{
????public?partial?class?MainForm?:?Form
????{
????????public?MainForm（）
????????{
????????????InitializeComponent（）;
????????}

????????//選擇并讀取TXT文件
????????private?void?btn_Path_Click（object?sender?EventArgs?e）
????????{
????????????OpenFileDialog?xjOpenFileDialog?=?new?OpenFileDialog（）;
????????????xjOpenFileDialog.Filter?=?“文本文件|*.txt“;
????????????if?（xjOpenFileDialog.ShowDialog（）?==?DialogResult.OK）
????????????{
????????????????string?xjFilePath=xjOpenFileDialog.FileName;
????????????????this.txt_Path.Text?=?xjFilePath;//顯示文件路徑

????????????????StreamReader?sr?=?new?StreamReader（xjFilePath?Encoding.Default）;
????????????????this.txt_Content.Text?=?sr.ReadToEnd（）;//顯示內容
????????????}
????????}

????????//寫入TXT文件
????????private?void?btn_In_Click（object?sender?EventArgs?e）
????????{
????????????SaveFileDialog?xjSaveFileDialog?=?new?SaveFileDialog（）;
????????????xjSaveFileDialog.Filter?=?“文本文件|*.txt“;
????????????if?（xjSaveFileDialog.ShowDialog（）?==?DialogResult.OK）
????????????{
????????????????string?xjFilePath?=?xjSaveFileDialog.FileName;
????????????????this.txt_Path2.Text?=?xjFilePath;//顯示文件路徑

????????????????if?（!File.Exists（xjFilePath））
????????????????{
????????????????????FileStream?xjFileStream?=?new?FileStream（xjFilePath?FileMode.Create?FileAccess.Write）;
????????????????????StreamWriter?xjStreamWriter?=?new?StreamWriter（xjFileStream?Encoding.Default）;
????????????????????xjStreamWriter.WriteLine（this.txt_Content.Text）;//要寫入的
????????????????????xjStreamWriter.Close（）;
????????????????????xjFileStream.Close（）;
????????????????????MessageBox.Show（“保存成功！“）;
????????????????}
????????????}
????????}
????}
}

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件??????10240??2017-11-03?15:35??txt讀寫\txt讀寫\bin\Debug\txt讀寫.exe

?????文件??????24064??2017-11-03?15:35??txt讀寫\txt讀寫\bin\Debug\txt讀寫.pdb

?????文件??????11600??2017-11-03?16:14??txt讀寫\txt讀寫\bin\Debug\txt讀寫.vshost.exe

?????文件????????490??2010-03-17?22:39??txt讀寫\txt讀寫\bin\Debug\txt讀寫.vshost.exe.manifest

?????文件???????2026??2017-11-03?15:31??txt讀寫\txt讀寫\MainForm.cs

?????文件???????5840??2017-11-03?15:00??txt讀寫\txt讀寫\MainForm.Designer.cs

?????文件???????5817??2017-11-03?15:00??txt讀寫\txt讀寫\MainForm.resx

?????文件???????4501??2017-11-03?14:44??txt讀寫\txt讀寫\obj\x86\Debug\DesignTimeResolveAssemblyReferences.cache

?????文件???????6353??2017-11-03?16:14??txt讀寫\txt讀寫\obj\x86\Debug\DesignTimeResolveAssemblyReferencesInput.cache

?????文件????????170??2017-11-03?15:00??txt讀寫\txt讀寫\obj\x86\Debug\GenerateResource.read.1.tlog

?????文件????????430??2017-11-03?15:00??txt讀寫\txt讀寫\obj\x86\Debug\GenerateResource.write.1.tlog

?????文件???????8031??2017-11-03?14:45??txt讀寫\txt讀寫\obj\x86\Debug\ResolveAssemblyReference.cache

?????文件????????843??2017-11-03?16:14??txt讀寫\txt讀寫\obj\x86\Debug\txt讀寫.csproj.FileListAbsolute.txt

?????文件??????10240??2017-11-03?15:35??txt讀寫\txt讀寫\obj\x86\Debug\txt讀寫.exe

?????文件????????180??2017-11-03?15:00??txt讀寫\txt讀寫\obj\x86\Debug\txt讀寫.MainForm.resources

?????文件??????24064??2017-11-03?15:35??txt讀寫\txt讀寫\obj\x86\Debug\txt讀寫.pdb

?????文件????????180??2017-11-03?08:59??txt讀寫\txt讀寫\obj\x86\Debug\txt讀寫.Properties.Resources.resources

?????文件????????493??2017-11-03?08:33??txt讀寫\txt讀寫\Program.cs

?????文件???????1368??2017-11-03?08:32??txt讀寫\txt讀寫\Properties\AssemblyInfo.cs

?????文件???????2866??2017-11-03?08:32??txt讀寫\txt讀寫\Properties\Resources.Designer.cs

?????文件???????5612??2017-11-03?08:32??txt讀寫\txt讀寫\Properties\Resources.resx

?????文件???????1092??2017-11-03?08:32??txt讀寫\txt讀寫\Properties\Settings.Designer.cs

?????文件????????249??2017-11-03?08:32??txt讀寫\txt讀寫\Properties\Settings.settings

?????文件???????3692??2017-11-03?08:53??txt讀寫\txt讀寫\txt讀寫.csproj

?????文件????????869??2017-11-03?08:33??txt讀寫\txt讀寫.sln

????..A..H.?????18432??2017-11-03?16:18??txt讀寫\txt讀寫.suo

?????目錄??????????0??2017-11-03?08:32??txt讀寫\txt讀寫\obj\x86\Debug\TempPE

?????目錄??????????0??2017-11-03?15:35??txt讀寫\txt讀寫\obj\x86\Debug

?????目錄??????????0??2017-11-03?14:44??txt讀寫\txt讀寫\bin\Debug

?????目錄??????????0??2017-11-03?08:33??txt讀寫\txt讀寫\bin\Release

............此處省略9個文件信息