[英]c# - How to list all files and folders on a hard drive?
我想列出程序可以访问的所有文件和文件夹,并将它们写入文本文件。 我将如何获得清单? 我需要一种方法来捕获或不抛出UnauthorizedAccessExceptions在不可访问的文件夹上。
请尝试使用以下代码:
private static IEnumerable<string> Traverse(string rootDirectory)
{
IEnumerable<string> files = Enumerable.Empty<string>();
IEnumerable<string> directories = Enumerable.Empty<string>();
try
{
// The test for UnauthorizedAccessException.
var permission = new FileIOPermission(FileIOPermissionAccess.PathDiscovery, rootDirectory);
permission.Demand();
files = Directory.GetFiles(rootDirectory);
directories = Directory.GetDirectories(rootDirectory);
}
catch
{
// Ignore folder (access denied).
rootDirectory = null;
}
if (rootDirectory != null)
yield return rootDirectory;
foreach (var file in files)
{
yield return file;
}
// Recursive call for SelectMany.
var subdirectoryItems = directories.SelectMany(Traverse);
foreach (var result in subdirectoryItems)
{
yield return result;
}
}
客户代码:
var paths = Traverse(@"Directory path");
File.WriteAllLines(@"File path for the list", paths);
尝试
string[] files = Directory.GetFiles(@"C:\\", "*.*", SearchOption.AllDirectories);
这将为您提供一个包含硬盘上所有文件的阵列。
查看Directory.GetFiles()
和相关方法。
您可以尝试
var files = from file in Directory.EnumerateFiles(@"your Path", "*.*", SearchOption.AllDirectories)
select file;
使用Serge建议的Traverse和DriveInfo类,您可以访问PC可用的所有文件。
DriveInfo[] allDrives = DriveInfo.GetDrives();
foreach (DriveInfo d in allDrives)
{
if (d.IsReady == true)
{
var paths = Traverse(d.Name);
File.AppendAllLines(@"File path for the list", paths);
}
}
声明:本站的技术帖子网页,遵循CC BY-SA 4.0协议,如果您需要转载,请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.