搜索嵌套文件

Question

如何在嵌套文件夹中搜索文件？

Answer 1

这是你在C＃中的表现： http://support.microsoft.com/kb/303974

关键是递归。您的方法必须为它找到的每个文件夹调用自己。因此它会越来越深入调用堆栈，但只调用自身。例如，假设您有一个文件夹a，其中包含文件夹aa和ab。这些文件夹中包含文件夹aaa和aba。然后，您将首先遍历a的所有内容，即aa和ab。然后，您将调用相同的方法并对它们执行相同的操作，直到没有其他文件夹为止。

Answer 2

我认为你可以使用

 DirectoryInfo di = new DirectoryInfo(path);
 FileInfo[] files = di.GetFiles(searchPattern, SearchOption.AllDirectories);

如MSDN中SearchOption.AllDirectories

所述

Includes the current directory and all the subdirectories in a search operation. This option includes reparse points like mounted drives and symbolic links in the search.

Answer 3

尝试像这样的递归方法....

    public string SearchForFile(string directory, string filename)
    {
        string file = "";

        //Look in this directory first
        string[] files = Directory.GetFiles(directory, filename);
        if (files.Count() > 0)
            file = files[0];
        else  //Not found here, so try the sub-directories
        {
            foreach (string subDirectory in Directory.GetDirectories(directory))
            {
                file = SearchForFile(subDirectory, filename);
                if (file != "")
                    break;
            }
        }

        return file;
    }