python学习-4-类的使用

class Animal:
def __init__(self, name):    # Constructor of the class
self.name = name
def talk(self):              # Abstract method, defined by convention only
raise NotImplementedError("Subclass must implement abstract method")

class Cat(Animal):
def talk(self):
return 'Meow!'

class Dog(Animal):
def talk(self):
return 'Woof! Woof!'

animals = [Cat('Missy'),
Dog('Lassie')]

for animal in animals:
print animal.name + ': ' + animal.talk()

#!_*_coding:utf-8_*_
#__author__:"Alex Li"

class SchoolMember(object):
members = 0 #初始学校人数为0
def __init__(self,name,age):
self.name = name
self.age = age

def  tell(self):
pass

def enroll(self):
'''注册'''
SchoolMember.members +=1
print("\033[32;1mnew member [%s] is enrolled,now there are [%s] members.\033[0m " %(self.name,SchoolMember.members))

def __del__(self):
'''析构方法'''
print("\033[31;1mmember [%s] is dead!\033[0m" %self.name)
class Teacher(SchoolMember):
def __init__(self,name,age,course,salary):
super(Teacher,self).__init__(name,age)
self.course = course
self.salary = salary
self.enroll()

def teaching(self):
'''讲课方法'''
print("Teacher [%s] is teaching [%s] for class [%s]" %(self.name,self.course,'s12'))

def tell(self):
'''自我介绍方法'''
msg = '''Hi, my name is [%s], works for [%s] as a [%s] teacher !''' %(self.name,'Oldboy', self.course)
print(msg)

class Student(SchoolMember):
def __init__(self, name,age,grade,sid):
super(Student,self).__init__(name,age)
self.grade = grade
self.sid = sid
self.enroll()

def tell(self):
'''自我介绍方法'''
msg = '''Hi, my name is [%s], I'm studying [%s] in [%s]!''' %(self.name, self.grade,'Oldboy')
print(msg)

if __name__ == '__main__':
t1 = Teacher("Alex",22,'Python',20000)
t2 = Teacher("TengLan",29,'Linux',3000)

s1 = Student("Qinghua", 24,"Python S12",1483)
s2 = Student("SanJiang", 26,"Python S12",1484)

t1.teaching()
t2.teaching()
t1.tell()

class Role(object):
def __init__(self,name,role,weapon,life_value=100,money=15000):
self.name = name
self.role = role
self.weapon = weapon
self.life_value = life_value
self.money = money

def shot(self):
print("shooting...")

def got_shot(self):
print("ah...,I got shot...")

def buy_gun(self,gun_name):
print("just bought %s" %gun_name)

r1 = Role('Alex','police','AK47’) #生成一个角色
r2 = Role('Jack','terrorist','B22’)  #生成一个角色