擅长:python、mysql、java
<p>在我看来,类变量完全是python类型的。在</p>
<p>只要注意一件事。实例变量可以隐藏类变量:</p>
<pre><code>x.counter = 5 # creates an instance variable in the object x.
print x.counter # instance variable, prints 5
print y.counter # class variable, prints 2
print myclass.counter # class variable, prints 2
</code></pre>