title: How to match Chinese word in Ruby？
body: <p>I want to match Chinese word in a string, but it failed</p>
  
  <pre><code>irb(main):016:0&gt; "身高455478".scan(/\p{Han}/)
  SyntaxError: (irb):16: invalid character property name {Han}: /\p{Han}/
      from C:/Program Files/Ruby-2.1.0/bin/irb.bat:18:in `&lt;main&gt;'
  </code></pre>
  
  <p>What's wrong with it?</p>
  
  <p>The problem is very strange, is it the character encoding problem?</p>