class Person(object):
def init(self, name, age):
self.name = name
self.age = age
print(‘self:’, self)
# 定义一个build方法,返回一个person实例对象,这个方法等价于Person()。
@classmethod
def build(cls):
# cls()等于Person()
p = cls("Tom", 18)
print('cls:', cls)
return p
if name == ‘main’:
person = Person.build()
print(person, person.name, person.age)