python 继承

#coding=utf-8
class SchoolMember:
    def __init__(self,name,age):
        self.name=name
        self.age=age
        print 'SchoolMember：%s' %self.name
    def tell(self):
        print "Name:'%s' Age:'%s'"%(self.name,self.age)
class Teacher(SchoolMember):
    def __init__(self,name,age,salary):
        SchoolMember.__init__(self,name,age)
        self.salary=salary
        print('初始化Teacher:%s'%self.name)
    def tell(self):
        SchoolMember.tell(self)
        print("Salary:'%d'" %self.salary)

class Student(SchoolMember):
    def __init__(self,name,age,mark):
        SchoolMember.__init__(self,name,age)
        self.mark=mark
        print('初始化Teacher:%s'%self.name)

    def tell(self):
        SchoolMember.tell(self)
        print("Mark:'%d'" %self.mark)

t=Teacher('Mrs.Sun',40,30000)
s=Student("555",22,75)
print #prints a blank line
members=[t,s]
for member in members:
    member.tell()