C# 检查目录是否没有文件，但可能包含子文件夹
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Check to see if directory has no files, but it may contain subfolders
提问by Tharkis
I need to check to see if a directory is empty. The problem is, I want to consider the directory empty if it contains a sub folder regardless of whether or not the sub folder contains files. I only care about files in the path I am looking at. This directory will be accessed across the network, which kind of complicates things a bit. What would be the best way to go about this?
我需要检查目录是否为空。问题是，如果目录包含子文件夹，无论子文件夹是否包含文件，我都想将目录视为空。我只关心我正在查看的路径中的文件。该目录将通过网络访问，这使事情有点复杂。解决这个问题的最佳方法是什么？
采纳答案by Douglas
The Directory.EnumerateFiles(string)method overload only returns files contained directlywithin the specified directory. It does not return any subdirectories or files contained therein.
该Directory.EnumerateFiles(string)方法重载只返回文件包含直接指定的目录中。它不返回其中包含的任何子目录或文件。
bool isEmpty = !Directory.EnumerateFiles(path).Any();
The advantage of EnumerateFilesover GetFilesis that the collection of files is enumerated on-demand, meaning that the query will succeed as soon as the first file is returned (thereby avoiding reading the rest of the files in the directory).
EnumerateFilesover的优点GetFiles是文件集合是按需枚举的，这意味着只要返回第一个文件，查询就会成功（从而避免读取目录中的其余文件）。
回答by ispiro
Perhaps this:
也许这个：
if (Directory.GetFiles(path).Length == 0)...... ;
