python 访问对象的属性与方法

class Person(object):    name = "stu"    age = 10    height = 160    weight = 90    def run(self):        print("run")    def eat(self, food):        print("eat " + food)    def openDoor(self):        print("我已经打开了冰箱门")    def fillEle(self):        print("我已经把大象装进冰箱了")    def closeDoor(self):        print("我已经关闭了冰箱门")per = Person()‘‘‘访问属性格式：对象名.属性名赋值：对象名.属性名 = 新值‘‘‘per.name = "tom"per.age = 18per.height = 160per.weight = 80print(per.name, per.age, per.height, per.weight)‘‘‘访问方法格式：对象名.方法名(参数列表)‘‘‘per.openDoor()per.fillEle()per.closeDoor()per.eat("apple")#问题：目前来看Person创建的所有对象属性都是一样的per2 = Person()print(per2.age)per3 = Person()print(per3.age)