子类可以从Python中的父班继承实例变量

Question

在Python 2.7中，需要在子类中手动定义实例变量，或者可以直接从父类中继承？

，例如

class Person(object):
    def __init__(self, name, occupation):
        self.name = name
        self.occupation = occupation
class Teacher(Person):
    def __init__(self, name, occupation, subject):
        self.name = name
        self.occupation = occupation
        self.subject = subject

，可以在子类中重新分配名称和职业实例变量，而是可以以另一种方式继承这些？

Answer 1

您应该从父类调用__init__：

class Person(object):
    def __init__(self, name, occupation):
        self.name = name
        self.occupation = occupation
class Teacher(Person):
    def __init__(self, name, occupation, subject):
        Person.__init__(self, name, occupation)
        self.subject = subject