编写一个名为Pet的类，它应 具有以下属性

class Pet:
    def __init__(self, name, age):
        self.__name = name
        self.__age = age

    def __str__(self):
        return "{0} is {1} age!".format(self.__name, self.__age)

    def setName(self, name):
        self.__name = name

    def setAge(self, age):
        self.__age = age

    def getName(self):
        return self.__name

    def getAge(self):
        return self.__age


def main():
    pet_name = input('name:')
    pet_age = int(input('age:'))
    mypet = Pet(pet_name, pet_age)

    print("xxxxxxxxxxx")
    print("pet name: {0}".format(mypet.getName()))
    print("age of pet: {0}".format(mypet.getAge()))

    print(mypet)


main()