擅长:python、mysql、java
<p>Python是一种松散类型的语言。这意味着您不必指定变量类型。你可以这样做:</p>
<pre><code>class Account():
def deposit():
pass
class SavingsAccount(Account):
pass
obj = SavingsAccount()
obj.deposit(20)
</code></pre>
<p><strong>编辑</strong>:正如<a href="https://stackoverflow.com/users/1126841/chepner">chepner</a>指出的:<code>Python is strongly typed, but also dynamically typed: type is associated with an object, not the name referring to an object.</code></p>