python继承

#!/usr/bin/python# Filename: inherit.pyclass SchoolMember:    '''Represents any school member.'''    def __init__(self, name, age):        self.name = name        self.age = age        print '(Initialized SchoolMember: %s)' % self.name    def tell(self):        '''Tell my details.'''        print 'Name:"%s" Age:"%s"' % (self.name, self.age),class Teacher(SchoolMember):    '''Represents a teacher.'''    def __init__(self, name, age, salary):        SchoolMember.__init__(self, name, age)        self.salary = salary        print '(Initialized Teacher: %s)' % self.name    def tell(self):        SchoolMember.tell(self)        print 'Salary: "%d"' % self.salaryclass Student(SchoolMember):    '''Represents a student.'''    def __init__(self, name, age, marks):        SchoolMember.__init__(self, name, age)        self.marks = marks        print '(Initialized Student: %s)' % self.name    def tell(self):        SchoolMember.tell(self)        print 'Marks: "%d"' % self.markst = Teacher('Mrs. Shrividya', 40, 30000)s = Student('Swaroop', 22, 75)print # prints a blank linemembers = [t, s]for member in members:    member.tell() # works for both Teachers and Students 

$ python inherit.py
(Initialized SchoolMember: Mrs. Shrividya)
(Initialized Teacher: Mrs. Shrividya)
(Initialized SchoolMember: Swaroop)
(Initialized Student: Swaroop)

Name:"Mrs. Shrividya" Age:"40" Salary: "30000"
Name:"Swaroop" Age:"22" Marks: "75"