c# - Directory.GetFiles 如何访问子目录？

Question

我如何也可以从子目录中获取文件，使用此代码只能为列出的目录下的文件完成工作：

    DirectoryInfo selDir = new DirectoryInfo(folderBrowserDialog1.SelectedPath);
    Directory.CreateDirectory(folderBrowserDialog1.SelectedPath + "\\Output");

foreach (FileInfo d in selDir.GetFiles())
    {
        //my code
    }

Answer 1

var allFiles = selDir.GetFiles("*.*", SearchOption.AllDirectories);

Answer 2

您拥有所需文件夹的 DirectoryInfo，因此遍历所有目录，然后您可以获得每个目录的文件。

DirectoryInfo selDir = new DirectoryInfo(folderBrowserDialog1.SelectedPath);
Directory.CreateDirectory(Path.Combine(folderBrowserDialog1.SelectedPath, "Output"));

foreach (string dir in System.IO.Directory.GetDirectories(selDir.FullName, "*.*", System.IO.SearchOption.AllDirectories))
{
    foreach (string file in Directory.GetFiles(dir))
    {
        //my code
    }
}

Answer 3

我通常会使用一种重复的方法来做到这一点。例子：

    private void getFiles(string directory)
    {
        string[] files = Directory.GetFiles(directory);
        string[] directories = Directory.GetDirectories(directory);

        foreach (string file in files)
        {
            // Code here.
        }

        foreach (string subDirectory in directories)
        {
            // Call the same method on each directory.
            getFiles(subDirectory);
        }
    }

Answer 4

DirectoryInfo selDir = new DirectoryInfo(folderBrowserDialog1.SelectedPath);
Directory.CreateDirectory(folderBrowserDialog1.SelectedPath + "\\Output");

string[] files = Directory.GetFiles(selDir.FullName, "*.*", SearchOption.AllDirectories);

foreach (string file in files)
{
    // your code
}