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class Dog(): #创建类 """一次模拟小狗的简单尝试""" def __init__(self,name,age): """初始化属性name和age""" self.name = name self.age = age def sit(self): """模拟小狗被命令时蹲下""" print(self.name.title()+ "is now sitting.") def roll_over(self): """模拟小狗被命令时打滚""" print(self.name.title()+"roll over!") obj=Dog(‘whille‘, 6) #根据类创建实例 print(obj.name) obj.sit() obj.roll_over()
class Car(): #Car类 """一次模拟汽车的简单尝试""" def __init__(self,make,model,year,): """初始化描述汽车的属性""" self.make = make self.model = model self.year = year self.odometer_reading = 0 #给属性指定默认值 def get_descriptive_name(self): """返回整洁的信息""" long_name = str(self.year)+‘ ‘+self.make + ‘ ‘+self.model print(long_name) return long_name.title() def read_odometer(self): """打印一条指出汽车里程的信息""" print("This car has " + str(self.odometer_reading) + " miles on it ") def update_odometer(self, mileage): #用方法修改属性的值 self.odometer_reading = mileage new_car = Car(‘audi‘,‘a4‘,2016) new_car.get_descriptive_name() new_car.odometer_reading = 23 #直接修改属性默认值 new_car.read_odometer()
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原文地址：http://www.cnblogs.com/dws-love-jfl-1314/p/5952366.html
