带有遮罩的C#Directory.GetFiles [英] C# Directory.GetFiles with mask

问题描述

在C#中，我想从与以下掩码匹配的特定目录中获取所有文件:

In C#, I would like to get all files from a specific directory that matches the following mask:

• 前缀为"myfile_"
• 后缀是一些数字
• 文件扩展名是xml

• prefix is "myfile_"
• suffix is some numeric number
• file extension is xml

即

myfile_4.xml 
myfile_24.xml

以下文件不应与掩码匹配:

the following files should not match the mask:

_myfile_6.xml
myfile_6.xml_

代码应该对此有所帮助(也许某些linq查询可以提供帮助)

the code should like somehing this this (maybe some linq query can help)

string[] files = Directory.GetFiles(folder, "???");

谢谢

推荐答案

我对正则表达式不好，但这可能有帮助-

I am not good with regular expressions, but this might help -

var myFiles = from file in System.IO.Directory.GetFiles(folder, "myfile_*.xml")
              where Regex.IsMatch(file, "myfile_[0-9]+.xml",RegexOptions.IgnoreCase) //use the correct regex here
              select file;

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