title: How to compare two version number strings in golang
body: <p>I have two strings (they are actually version numbers and they could be any version numbers)</p>
  
  <pre><code>a := "1.05.00.0156"  
  b := "1.0.221.9289"
  </code></pre>
  
  <p>I want to compare which one is bigger. How to do it in golang? </p>