title: Regex to extract img source from a string
body: <p>I have strings like this:</p>
  
  <pre><code>&lt;img width="1" height="1" alt="" src="http://row.bc.yahoo.com.link"&gt;
  </code></pre>
  
  <p>What regex should I have to write in C# to extract src portion of it ? (end result should be "http://row.bc.yahoo.com.link" )</p>