class Cat:
def __init__(self, new_name):
self.name = new_name
print("%s 来了" % self.name)
def __del__(self):
print("%s 我去了" % self.name)
def __str__(self):
# 必须返回一个字符串
return "我是小猫[%s]" % self.name
# tom 是一个全局变量
tom = Cat("Tom")
print(tom)
class Person:
def __init__(self, name, weight):
# self.属性 = 形参
self.name = name
self.weight = weight
def __str__(self):
return "我的名字叫 %s 体重是 %.2f 公斤" % (self.name, self.weight)
def run(self):
print("%s 爱跑步，跑步锻炼身体" % self.name)
self.weight -= 0.5
def eat(self):
print("%s 是吃货，吃完这顿再减肥" % self.name)
self.weight += 1
xiaoming = Person("小明", 75.0)
xiaoming.run()
xiaoming.eat()
print(xiaoming)
class Person:
def __init__(self, name, weight):
# self.属性 = 形参
self.name = name
self.weight = weight
def __str__(self):
return "我的名字叫 %s 体重是 %.2f 公斤" % (self.name, self.weight)
def run(self):
print("%s 爱跑步，跑步锻炼身体" % self.name)
self.weight -= 0.5
def eat(self):
print("%s 是吃货，吃完这顿再减肥" % self.name)
self.weight += 1
xiaoming = Person("小明", 75.0)
xiaoming.run()
xiaoming.eat()
print(xiaoming)
# 小美爱跑步
xiaomei = Person("小美", 45)
xiaomei.eat()
xiaomei.run()
print(xiaomei)
print(xiaoming)
