ClearDirectory.exe下载
可拖拽任意文件或目录至此工具，执行清除。也可通过cmd调用。文件清除后，数据恢复软件也无法恢复。
REM 清除指定的文件或目录"%~dp0ClearDirectory.exe" "D:\sci\1.txt"
源码：
using System;using System.Collections.Generic;using System.IO;using System.Linq;using System.Text;using System.Threading.Tasks;namespace ClearDirectory{public class ClearTool{/// <summary>/// 清空目录或文件/// </summary>public static void ClearDelet(string path){if (File.Exists(path)) ClearDeletFile(path);if (Directory.Exists(path)) ClearDeletDirectory(path);}/// <summary>/// 先清空目录中的所有文件和子目录内容，再删除当前目录/// </summary>public static void ClearDeletDirectory(string dir){if (Directory.Exists(dir)){// 清除目录下的所有文件foreach (String iteam in Directory.GetFiles(dir)){ClearDeletFile(iteam);}// 清除目录下的所有子目录foreach (String iteam in Directory.GetDirectories(dir)){ClearDeletDirectory(iteam);}String newName = System.IO.Directory.GetParent(dir).FullName + "\\$";while (File.Exists(newName)) newName += "$";// 清除当前目录Directory.Move(dir, newName); // 重命名当前目录，清除目录名信息Directory.Delete(newName);// 清除当前目录}}/// <summary>/// 先清空文件内容，再删除/// </summary>public static void ClearDeletFile(string file){ClearFile(file);// 清空文件内容if (File.Exists(file)){String newName = System.IO.Directory.GetParent(file).FullName + "\\$";while (File.Exists(newName)) newName += "$";File.Move(file, newName); // 重命名文件，清除文件名称信息File.Delete(newName); // 删除文件}}/// <summary>/// 清空文件内容/// </summary>public static void ClearFile(string file){if (File.Exists(file)){int SIZE = 1024 * 10240;byte[] array = new byte[SIZE];array.Initialize();FileStream s = new FileStream(file, FileMode.Open, FileAccess.ReadWrite, FileShare.ReadWrite, SIZE, FileOptions.RandomAccess);// 清空原有文件内容while (s.Position + SIZE <= s.Length - 1){s.Write(array, 0, SIZE);}int reminds = (int)(s.Length - s.Position);if (reminds > 0) s.Write(array, 0, reminds);// 清除文件长度信息s.SetLength(0);s.Close();}}}}
