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冬凉默殇

#1 Created at ... [Delete] [Delete and Lock User]

callable(Student())应为callable(Student）

AlWays_MU

#2 Created at ... [Delete] [Delete and Lock User]

两个是不一样的。 callable(Student)是对类，callable(Student())是对Student类的对象

Note that classes are callable (calling a class returns a new instance); class instances are callable if they have a call() method.

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#3 Created at ... [Delete] [Delete and Lock User] 
在此插入代码

callable(Student())

程序运行的时候是会报错

Traceback (most recent call last): File "oopad.py", line 199, in <module> print(callable(Student())) TypeError: _init() missing 1 required positional argument: 'name'

callable(Student)

运行结果才为True

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