title: What does this C# string format mean?
body: <p>From my previous question, <a href="https://stackoverflow.com/questions/3571563/converting-chinese-character-to-unicode">Converting chinese character to Unicode</a>, I had a good answer but with some code I didn't understand:</p>
  
  <p><code>Console.WriteLine("U+{0:x4}", (int)myChar);</code></p>
  
  <p>Could anyone explain this?</p>