class Cat:
name = ''
def __init__(self):
# self.name = 'Tom'
print('init')
def __str__(self):
return(self.name)
def drink(self):
print('drink')
cat = Cat()
cat.name = 'Tom'
print(f'我是小猫{cat},我的id是{id(cat)}',cat,cat.name)
cat.drink()