趁有空,对.net的文件操作类做了一个大概的总结.
首先引用IO namespace:
using System.IO;创建目录:
/// <summary> /// Directory.CreateDirectory参数解释: /// path /// 要创建的目录。 /// directorySecurity /// 要应用于此目录的访问控制。 /// /// 如果文件夹存在则不创建,可用Directory.Exists判断文件夹是否存在. /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void button1_Click( object sender, EventArgs e) { try { DirectoryInfo di = Directory.CreateDirectory( @" C:\FileOperator " ); string message = string .Format( " Create \ " { 0 }\ " success! " , di.FullName); MessageBox.Show(message, " 系统消息 " , MessageBoxButtons.OK, MessageBoxIcon.Information); } catch { MessageBox.Show( " Create folder Error! " , " 系统消息 " , MessageBoxButtons.OK, MessageBoxIcon.Error); } }创建文件:
/// <summary> /// File.Create参数解释: /// path /// 类型：System..::.String /// 文件名。 /// bufferSize /// 类型：System..::.Int32 /// 用于读取和写入文件的已放入缓冲区的字节数。 /// options /// 类型：System.IO..::.FileOptions /// FileOptions 值之一，它描述如何创建或覆盖该文件。 /// fileSecurity /// 类型：System.Security.AccessControl..::.FileSecurity /// FileSecurity 值之一，它确定文件的访问控制和审核安全性。 /// 创建文件会覆盖原来同名文件,所以创建前最好File.Exists判断文件是否存在. /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void button2_Click( object sender, EventArgs e) { try { FileStream fs = File.Create( @" C:\FileOperator\File1.txt " ); string message = string .Format( " Create \ " { 0 }\ " success! " , fs.Name); MessageBox.Show(message, " 系统消息 " , MessageBoxButtons.OK, MessageBoxIcon.Information); fs.Dispose(); fs.Close(); } catch { MessageBox.Show( " Create file Error! " , " 系统消息 " , MessageBoxButtons.OK, MessageBoxIcon.Error); } }打开和写入文件:
/// <summary> /// File.Open参数解释: /// path /// 类型：System..::.String /// 要打开的文件。 /// mode /// 类型：System.IO..::.FileMode /// FileMode 值，用于指定在文件不存在时是否创建该文件，并确定是保留还是覆盖现有文件的内容。 /// access /// 类型：System.IO..::.FileAccess /// FileAccess 值，指定可以对文件执行的操作。 /// share /// 类型：System.IO..::.FileShare /// FileShare 值，它指定其他线程所具有的对该文件的访问类型。 /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void button3_Click( object sender, EventArgs e) { try { FileStream fs = File.Open( @" C:\FileOperator\File1.txt " , FileMode.Append); byte [] byteArray = new byte [] { ( byte ) ' K ' , ( byte ) ' E ' , ( byte ) ' N ' }; fs.Write(byteArray, 0 , byteArray.Length); string message = string .Format( " Write \ " KEN\ " to File success! " , fs.Name); MessageBox.Show(message, " 系统消息 " , MessageBoxButtons.OK, MessageBoxIcon.Information); fs.Dispose(); fs.Close(); } catch { MessageBox.Show( " Open & Write file Error! " , " 系统消息 " , MessageBoxButtons.OK, MessageBoxIcon.Error); } }文件复制:
/// <summary> /// File.Copy参数解释: /// sourceFileName: 源文件 /// destFileName: 目标文件 /// overwrite: 如果目标已存在,是否覆盖目标文件 /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void button4_Click( object sender, EventArgs e) { try { DirectoryInfo di = Directory.CreateDirectory( @" C:\FileOperator\Temp " ); File.Copy( @" C:\FileOperator\File1.txt " , @" C:\FileOperator\Temp\File1.txt " , true ); string message = string .Format( " Copy File to \ " { 0 }\ " success! " , @" C:\FileOperator\Temp\File1.txt " ); MessageBox.Show(message, " 系统消息 " , MessageBoxButtons.OK, MessageBoxIcon.Information); } catch { MessageBox.Show( " Copy file Error! " , " 系统消息 " , MessageBoxButtons.OK, MessageBoxIcon.Error); } }文件删除:
/// <summary> /// File.Delete参数解释: /// path: 文件完整路径; /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void button5_Click( object sender, EventArgs e) { try { File.Delete( @" C:\FileOperator\Temp\File1.txt " ); string message = " Delete File success! " ; MessageBox.Show(message, " 系统消息 " , MessageBoxButtons.OK, MessageBoxIcon.Information); } catch { MessageBox.Show( " Delete file Error! " , " 系统消息 " , MessageBoxButtons.OK, MessageBoxIcon.Error); } }移动和重命名:
/// <summary> /// File.Move参数解释: /// sourceFileName: 源文件 /// destFileName: 目标文件 /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void button6_Click( object sender, EventArgs e) { try { // move File.Move( @" C:\FileOperator\File1.txt " , @" C:\FileOperator\Temp\File1.txt " ); // rename File.Move( @" C:\FileOperator\Temp\File1.txt " , @" C:\FileOperator\Temp\File2.txt " ); string message = " Move & Rename file success! " ; MessageBox.Show(message, " 系统消息 " , MessageBoxButtons.OK, MessageBoxIcon.Information); } catch { MessageBox.Show( " Move & Rename file Error! " , " 系统消息 " , MessageBoxButtons.OK, MessageBoxIcon.Error); } // 文件夹的Move和Rename同文件一样,也使用File.Move,传入文件路径即可. }设置文件属性:
/// <summary> /// File.SetAttributes参数解释: /// path: 文件完整路径; /// fileAttributes: FileAttributes值,指定文件属性. /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void button7_Click( object sender, EventArgs e) { try { File.SetAttributes( @" C:\FileOperator\Temp\File2.txt " , FileAttributes.ReadOnly | FileAttributes.Hidden); string message = " Set file Readonly & Hidden success! " ; MessageBox.Show(message, " 系统消息 " , MessageBoxButtons.OK, MessageBoxIcon.Information); } catch { MessageBox.Show( " Set file attributes Error! " , " 系统消息 " , MessageBoxButtons.OK, MessageBoxIcon.Error); } }检查文件和目录是否存在:
/// <summary> /// 参数解释: /// path:文件路径 /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void button8_Click( object sender, EventArgs e) { try { if (Directory.Exists( @" C:\FileOperator\Temp " )) MessageBox.Show( string .Format( " \ " { 0 }\ " Exits! " , @" C:\FileOperator\Temp\ " ), " 系统消息 " , MessageBoxButtons.OK, MessageBoxIcon.Information); if (File.Exists( @" C:\FileOperator\Temp\File2.txt " )) MessageBox.Show( string .Format( " \ " { 0 }\ " Exits! " , @" C:\FileOperator\Temp\File2.txt " ), " 系统消息 " , MessageBoxButtons.OK, MessageBoxIcon.Information); } catch { MessageBox.Show( " Check Folder & File Error! " , " 系统消息 " , MessageBoxButtons.OK, MessageBoxIcon.Error); } }设置目录属性:
/// <summary> /// 不用解释 /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void button9_Click( object sender, EventArgs e) { try { DirectoryInfo di = new DirectoryInfo( @" C:\FileOperator\Temp " ); di.Attributes = FileAttributes.ReadOnly | FileAttributes.Hidden; string message = " Set folder attributes success! " ; MessageBox.Show(message, " 系统消息 " , MessageBoxButtons.OK, MessageBoxIcon.Information); } catch { MessageBox.Show( " Set folder attributes Error! " , " 系统消息 " , MessageBoxButtons.OK, MessageBoxIcon.Error); } }获取子目录:
/// <summary> /// 懒得解释 /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void button10_Click( object sender, EventArgs e) { try { string [] children = Directory.GetDirectories( @" C:\FileOperator " ); string message = string .Empty; if (children.Length > 0 ) message = string .Format( " {0} folders in \ " { 1 }\ "" , children.Length, @" C:\FileOperator " ); else message = string .Format( " No folder in \ " { 0 }\ "" , @" C:\FileOperator " ); MessageBox.Show(message, " 系统消息 " , MessageBoxButtons.OK, MessageBoxIcon.Information); } catch { MessageBox.Show( " Get child folder Error! " , " 系统消息 " , MessageBoxButtons.OK, MessageBoxIcon.Error); } }获取目录下所有文件:
/// <summary> /// 呵呵 /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void button11_Click( object sender, EventArgs e) { try { string [] files = Directory.GetFiles( @" C:\FileOperator " ); string message = string .Empty; if (files.Length > 0 ) message = string .Format( " {0} files in \ " { 1 }\ "" , files.Length, @" C:\FileOperator " ); else message = string .Format( " No file in \ " { 0 }\ "" , @" C:\FileOperator " ); MessageBox.Show(message, " 系统消息 " , MessageBoxButtons.OK, MessageBoxIcon.Information); } catch { MessageBox.Show( " Get files Error! " , " 系统消息 " , MessageBoxButtons.OK, MessageBoxIcon.Error); } }删除目录:
/// <summary> /// 参数解释: /// path: /// recursive:是否递归删除目录下所有目录及文件. /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void button12_Click( object sender, EventArgs e) { try { // 正常文件才可以删除 DirectoryInfo di = new DirectoryInfo( @" C:\FileOperator\Temp " ); di.Attributes = FileAttributes.Normal; File.SetAttributes( @" C:\FileOperator\Temp\File2.txt " , FileAttributes.Normal); // delete Directory.Delete( @" C:\FileOperator " , true ); MessageBox.Show( " Delete folder success! " , " 系统消息 " , MessageBoxButtons.OK, MessageBoxIcon.Information); } catch { MessageBox.Show( " Delete folder Error! " , " 系统消息 " , MessageBoxButtons.OK, MessageBoxIcon.Error); } }
另外,.Net对txt文件提供了更友好的操作封装,具体请查看MSDN,path参数可以用绝对路径,也可以使用相对路径,个人推荐使用绝对路径.
全部操作源代码,请点击 源代码 下载.
转载于:https://www.cnblogs.com/KenBlove/archive/2008/09/27/1300426.html
