擅长:python、mysql、java
<p>问题出在你的退货单上。你知道吗</p>
<p>改变</p>
<pre><code>def __str__(self):
hotels = [str(h) for h in self._hotels]
return "Hotels\n{} ".format(self._hotels) # need help here
</code></pre>
<p>至</p>
<pre><code>def __str__(self):
hotels = [str(h) for h in self._hotels]
return "Hotels\n{} ".format(hotels)
</code></pre>