类与实例
class Car:
price = 100000 #定义类属性
def __init__(self, c):
self.color = c #定义实例属性
car1 = Car("Red") #实例化对象
car2 = Car("Blue")
#查看实例属性和类属性的值
print(car1.color, Car.price)
#修改类属性
Car.price = 110000
#动态增加类属性
Car.name = 'QQ'
#修改实例属性
car1.color = "Yellow"
print(car2.color, Car.price, Car.name)
print(car1.color, Car.price, Car.name)
#
import types
def setSpeed(self, s):
self.speed = s
car1.setSpeed = types.MethodType(setSpeed, car1) #动态增加成员方法
car1.setSpeed(50) #调用成员方法
print(car1.speed)
