python之面向对象之继承详解编程语言

#写一个类SchoolMember 
class SchoolMember(object): 
    member_num = 0 
    def __init__(self,name,age,sex): 
        self.name = name 
        self.age = age 
        self.sex = sex 
        self.reg() 
        # self.member_num += 1 
    def reg(self): 
        SchoolMember.member_num += 1 
        print("SchoolMember[%s] is come to school,SchoolMember [%s] is already registered" %(self.member_num,self.name)) 
    def tell(self): 
        print("hello,my name is [%s],and my age is [%s]" %(self.name,self.age)) 
 
 
#写一个SchollMember的子类teacher 
class Teacher(SchoolMember): 
    def __init__(self,name,age,sex,course,salary): 
        super(Teacher,self).__init__(name,age,sex) 
        self.course = course 
        self.salary = salary 
    def teaching(self): 
        print("Teacher [%s] is teaching [%s]" %(self.name,self.course)) 
 
 
class Student(SchoolMember): 
    def __init__(self,name,age,sex,course,xufei): 
        super(Student,self).__init__(name,age,sex) 
        self.course = course 
        self.xufei = xufei 
    def pay_money(self): 
        print("student [%s] must pay [%s] to school" %(self.name,self.xufei)) 
 
 
 
#首先分别创建2个teacher的实例和2个student的实例 
 
print("首先分别创建2个teacher的实例和2个student的实例") 
t1 = Teacher("teacher1","12","M","python","123") 
t2 = Teacher("teacher2","13","M","shell","234") 
s1 = Student("Student1","1","W","python","1234") 
s2 = Student("Student2","2","M","shell","12345") 
 
# 首先分别创建2个teacher的实例和2个student的实例 
# SchoolMember[1] is come to school,SchoolMember [teacher1] is already registered 
# SchoolMember[2] is come to school,SchoolMember [teacher2] is already registered 
# SchoolMember[3] is come to school,SchoolMember [Student1] is already registered 
# SchoolMember[4] is come to school,SchoolMember [Student2] is already registered 
 
 
print("teacher调用父类SchoolMember的方法tell") 
t1.tell() 
t2.tell() 
 
# teacher调用父类SchoolMember的方法tell 
# hello,my name is [teacher1],and my age is [12] 
# hello,my name is [teacher2],and my age is [13] 
 
 
print("teacher实例调用teacher类的方法") 
t1.teaching() 
t2.teaching() 
 
# teacher实例调用teacher类的方法 
# Teacher [teacher1] is teaching [python] 
# Teacher [teacher2] is teaching [shell] 
 
 
print("student调用父类SchoolMember的方法tell") 
s1.tell() 
s2.tell() 
 
# student调用父类SchoolMember的方法tell 
# hello,my name is [Student1],and my age is [1] 
# hello,my name is [Student2],and my age is [2] 
 
 
print("student实例调用student类的方法") 
s1.pay_money() 
s2.pay_money() 
 
 
# student实例调用student类的方法 
# student [Student1] must pay [1234] to school 
# student [Student2] must pay [12345] to school