class Car():
"""一次模拟汽车的简单尝试"""
def __init__(self, make, model, year):
self.make = make
self.model = model
self.year = year
self.odometer_reading = 0
def get_descriptive_name(self):
long_name = str(self.year) + ‘ ‘ + self.make + ‘ ‘ + self.model
return long_name.title()
def read_odometer(self):
print("This car has " + str(self.odometer_reading) + " miles on it.")
def update_odometer(self, mileage):
if mileage >= self.odometer_reading:
self.odometer_reading = mileage
else:
print("You can‘t roll back an odometer!")
def increment_odometer(self, miles):
self.odometer_reading += miles
class ElectricCar(Car):
"""电动汽车的独特之处"""
def __init__(self, make, model, year):
"""初始化父类的属性"""
super().__init__(make, model, year)
my_tesla = ElectricCar(‘tesla‘, ‘model s‘, 2016)
print(my_tesla.get_descriptive_name())
class Car():
def __init__(self, make, model, year):
self.make = make
self.model = model
self.year = year
self.odometer_reading = 0
-- snip --
?
class ElectricCar(Car):
"""Represent aspects of a car, specific to electric vehicles."""
def __init__(self, make, model, year):
"""
电动汽车的独特之处
初始化父类的属性，再初始化电动汽车特有的属性
"""
super().__init__(make, model, year)
self.battery_size = 70 # 1处
def describe_battery(self): # 2处
"""打印一条描述电瓶容量的消息"""
print("This car has a " + str(self.battery_size) + "-kWh battery.")
class Thread:
"""
xx1, xx2
"""
def __init__(self, xx1, xx2):
self.xx1 = xx1
self.xx2 = xx2
?
class MyThread(Thread):
def __init__(self, xx1, xx2):
super().__init__(xx1, xx2) # 等价于super(MyThread, self).__init__()
self.xx3 = "新增的属性3"
self.xx4 = "新增的属性4"
class ElectricCar(Car):
-- snip --
def fill_gas_tank():
"""电动汽车没有油箱"""
print("This car doesn‘t need a gas tank!")
class Father:
def __init__(self, name, age, sex):
self.name = name
self.age = age
self.sex = sex
?
def say(self):
print("父亲会说话，我叫%s, 我的年龄是%d, 我的性别是%s" % (self.name, self.age, self.sex))
?
?
class Child(Father):
def __init__(self, name, age, sex, grade, play):
super().__init__(name, age, sex)
self.grade = grade
self.play = play
?
def say(self):
print("孩子也会说话，我叫%s, 我的年龄是%d, 我的性别是%s, 我读%s, 我会玩%s" % (self.name, self.age, self.sex,
self.grade, self.play))
class Father:
def __init__(self, name=‘‘, age=0, sex=‘‘):
self.name = name
self.age = age
self.sex = sex
?
def say(self):
print("父亲会说话，我叫%s, 我的年龄是%d, 我的性别是%s" % (self.name, self.age, self.sex))
?
?
class Child(Father):
def __init__(self, grade, play):
super().__init__()
self.grade = grade
self.play = play
?
def say(self):
print("孩子也会说话，我叫%s, 我的年龄是%d, 我的性别是%s, 我读%s, 我会玩%s" % (self.name, self.age, self.sex,
self.grade, self.play))
if __name__ == ‘__main__‘:
C = Child(‘二年级‘, ‘play games‘)
C.say()
?
"""
孩子也会说话，我叫, 我的年龄是0, 我的性别是, 我读二年级, 我会玩play games
"""
class Father:
def __init__(self, name=‘‘, age=0, sex=‘‘):
self.name = name
self.age = age
self.sex = sex
?
def say(self):
print("父亲会说话，我叫%s, 我的年龄是%d, 我的性别是%s" % (self.name, self.age, self.sex))
?
?
class Child(Father):
def __init__(self, grade, play):
super().__init__()
self.grade = grade
self.play = play
?
def say(self):
print("孩子也会说话，我叫%s, 我的年龄是%d, 我的性别是%s, 我读%s, 我会玩%s" % (self.name, self.age, self.sex,
self.grade, self.play))
?
?
if __name__ == ‘__main__‘:
C = Child(‘二年级‘, ‘play games‘)
C.name = ‘小明‘
C.age = 12
C.sex = ‘boy‘
C.say()
# 孩子也会说话，我叫小明, 我的年龄是12, 我的性别是boy, 我读二年级, 我会玩play games
原文：https://www.cnblogs.com/dadaizi/p/11964741.html