C#获取指定文件夹所有文件

// 获取桌面路径

string desktop = Environment.GetFolderPath(Environment.SpecialFolder.Desktop);

string path = string.Format(@"{0}\{1}", desktop, "加密前");

DirectoryInfo folder = new DirectoryInfo(path);

// 从路径下循环获取文件

foreach(FileInfo file in folder.GetFiles())

{

  // 打印文件路径到控制台

  Console.WriteLine(file.FullName);

}

Console.ReadKey();

string desktop = Environment.GetFolderPath(Environment.SpecialFolder.Desktop);

string path = string.Format(@"{0}\{1}", desktop, "加密前");

DirectoryInfo folder = new DirectoryInfo(path);

StreamWriter txt;

if (File.Exists(desktop + "\\" + "路径.txt"))

{

  // 把原来的删掉重新创建一个

  File.Delete(desktop + "\\" + "路径.txt");

  txt = File.CreateText(desktop + "\\" + "路径.txt");

}

else

{

  // 创建 -> 路径.txt

  txt = File.CreateText(desktop + "\\" + "路径.txt");

}

List<string> fileNameList = new List<string>();

foreach (FileInfo file in folder.GetFiles())

{

  // 写入到 list 里面存储

  fileNameList.Add(file.FullName);

}

// 创建一个数组

string[] list=new string[fileNameList.Count];

// 把 list 值加到数组

for(int i = 0; i < fileNameList.Count; i++)

{

  list[i] = fileNameList[i];

}

// 调用排序方法

Array.Sort(list, new FileNameSort());

foreach(var fileUrl in list)

{

  // 写入 txt

  txt.WriteLine(fileUrl);

  Console.WriteLine(fileUrl);

}

// 释放资源

txt.Close();

txt.Dispose();

Console.ReadKey();

public class FileNameSort : IComparer

{

  // 调用 windos 的 DLL

  [System.Runtime.InteropServices.DllImport("Shlwapi.dll", CharSet = CharSet.Unicode)]

  private static extern int StrCmpLogicalW(string param1, string param2);

  // 前后文件名进行比较。

  public int Compare(object name1, object name2)

  {

    if (null == name1 && null == name2)

    {

      return 0;

    }

    if (null == name1)

    {

      return -1;

    }

    if (null == name2)

    {

      return 1;

    }

    return StrCmpLogicalW(name1.ToString(), name2.ToString());

  }

}