in C#, What does the "@" symbol do?
<blockquote>
  <p><strong>Possible Duplicate:</strong><br>
  <a href="http://stackoverflow.com/questions/556133/whats-the-in-front-of-a-string-for-net">What&#39;s the @ in front of a string for .NET?</a>  </p>
</blockquote>



<p>Sometimes i saw the sample code, will have a "@" symbol along with the string.
for example:</p>

<pre><code>    EntityConnectionStringBuilder entityBuilder = new EntityConnectionStringBuilder();
    entityBuilder.Provider = "System.Data.SqlServerCe.3.5";
    entityBuilder.ProviderConnectionString = providerString;
    entityBuilder.Metadata = @"res://*/App_Data.data.csdl|res://*/App_Data.data.ssdl|res://*/App_Data.data.msl";
</code></pre>

<p>On the 4th line, what is that usage of the "@"?
I try to remove this, it still works.</p>
