python 类继承

 1 #!/usr/bin/python
 2 # Filename: inherit.py
 3 
 4 class SchoolMember:
 5     ‘‘‘Represents any school member.‘‘‘
 6     def __init__(self, name, age):
 7         self.name = name
 8         self.age = age
 9         print‘(Initialized SchoolMember: %s)‘% self.name
10 
11     def tell(self):
12         ‘‘‘Tell my details.‘‘‘
13         print‘Name:"%s" Age:"%s"‘% (self.name, self.age),
14 
15 class Teacher(SchoolMember):
16     ‘‘‘Represents a teacher.‘‘‘
17     def__init__(self, name, age, salary):
18         SchoolMember.__init__(self, name, age)
19         self.salary = salary
20         print‘(Initialized Teacher: %s)‘% self.name
21 
22     def tell(self):
23         SchoolMember.tell(self)
24         print‘Salary: "%d"‘% self.salary
25 
26 class Student(SchoolMember):
27     ‘‘‘Represents a student.‘‘‘
28     def __init__(self, name, age, marks):
29         SchoolMember.__init__(self, name, age)
30         self.marks = marks
31         print‘(Initialized Student: %s)‘% self.name
32 
33     def tell(self):
34         SchoolMember.tell(self)
35         print‘Marks: "%d"‘% self.marks
36 
37 t = Teacher(‘Mrs. Shrividya‘,40,30000)
38 s = Student(‘Swaroop‘,22,75)
39 members = [t, s]
40 for member in members:
41     member.tell()# works for both Teachers and Students
42 （源文件：code/inherit.py）
43 输出
44 
45 $ python inherit.py
46 (Initialized SchoolMember: Mrs. Shrividya)
47 (Initialized Teacher: Mrs. Shrividya)
48 (Initialized SchoolMember: Swaroop)
49 (Initialized Student: Swaroop)
50 
51 Name:"Mrs. Shrividya" Age:"40" Salary: "30000"
52 Name:"Swaroop" Age:"22" Marks: "75"