试了一下，和你出来的结果不一样。你是在执行题目中的代码的时候，再进行sorted操作，才会这样么？

class Student(object):

def __init__(self,name,score):

   self.name=name

   self.score=score

   def __str__(self):

       return '(%s,%s)'%s(self.name,self.score)

   __repr__=__str__

   def __cmp__(self,s):

if self.name<s.name:

return -1

elif self.name>s.name:

return 1

else :

return 0

>>> L=[Student('Tim',99),Student('Bob',88),Student('Tom',77)]

>>> print sorted(L)

[<__main__.Student object at 0x02B23290>, <__main__.Student object at 0x02B23370>, <__main__.Student object at 0x02B233B0>]

代码是这样的，在IDE中结果上，为甚？

class Person(object):

    def __init__(self, name, gender):

        self.name = name

        self.gender = gender

class Student(Person):

    def __init__(self, name, gender, score):

        super(Student, self).__init__(name, gender)

        self.score = score

    def __str__(self):

        return '(Student: %s,%s,%s)'%(self.name,self.gender,self.score)

s = Student('Bob', 'male', 88)

print s