擅长:python、mysql、java
<p>Python将其解释为:</p>
<pre><code> """"string""" " "
#^^^These three " to start the string literal. The next one counts in the string.
#The three last ones after the last one are counted as the end.
</code></pre>
<p>注意偏离的<code>"</code>。</p>
<p>你只需:</p>
^{pr2}$