報錯原因是因為，你第19行print打印括號是中文的，改成英文的就可以。

import?os,sys
class?programmer(object):
????hobby="play?computer"

????def?__init__(self,name,age,weight):
????????self.name=name
????????self._age=age
????????self.__weight=weight

????@classmethod
????def?get_hobby(cls):
????????return?cls.hobby

????@property
????def?get_weight(self):
????????return?self.__weight

????def?self_introduce(self):
????????print("My?name?is?%s?\nI?am?%s?yeas?old\n"%(self.name,?self._age))


????
if?__name__=='__main__':
????prog=programmer('Albert',25,80)
????print(dir(prog))
????print(programmer.get_hobby())
????print(prog.get_weight)
????print(prog._programmer__weight,prog.self_introduce)