擅长:python、mysql、java
<p>显然与在相应的<code>attrs</code>类实例化中使用字典解包(<a href="https://stackoverflow.com/questions/36901/what-does-double-star-and-star-do-for-parameters">double star</a>)运算符一样简单。在</p>
<p><strong>示例:</strong></p>
<pre><code>>>> Coordinates(**{'x': 1, 'y': 2})
Coordinates(x=1, y=2)
</code></pre>