请问按老师的代码写,结果为什么是bound method.....
class Programer(object): hobby='play computer' def __init__(self,name,age,weight): self.name=name self._age=age self.__weight=weight def self_intro(self): print 'my name is %s \nI am %s years old\n' % (self.name, self._age) class BackendProgramer(Programer): def __init__(self,name,age,weight,language): super(BackendProgramer,self).__init__(name,age,weight) self.language = language def self_intro(self): print 'my name is %s \nmy favourite language is %s\n' % (self.name, self.language) def intro(i): if isinstance(i,Programer): print i.self_intro if __name__=='__main__': prog = Programer('Albert',25,'80') back_prog = BackendProgramer('Alex',23,'80','Ruby') intro(prog) intro(back_prog)
运行结果是:
<bound method Programer.self_intro of <__main__.Programer object at 0x030A5490>>
<bound method BackendProgramer.self_intro of <__main__.BackendProgramer object at 0x030A5510>>