title: Using Directory.GetFiles with a regex in C#?
body: <p>I have this code:</p>
  
  <pre><code>string[] files = Directory.GetFiles(path, "......", SearchOption.AllDirectories)
  </code></pre>
  
  <p>What I want is to return only files which do NOT start with <code>p_</code> and <code>t_</code> and have the extension png or jpg or gif. How would I do this?</p>