http://www.cnblogs.com/post/readauth?url=/linhaifeng/articles/6182264.html
上节课复习
class Garen: #定义英雄盖伦的类，不同的玩家可以用它实例出自己英雄; camp='Demacia' #所有玩家的英雄(盖伦)的阵营都是Demacia; n=0 # hobby=[] def __init__(self,nickname,aggressivity=58,life_value=455): #英雄的初始攻击力58...; self.nickname=nickname #为自己的盖伦起个别名; self.aggressivity=aggressivity #英雄都有自己的攻击力; self.life_value=life_value #英雄都有自己的生命值; Garen.n+=1 self.hobby=[] def attack(self,enemy): #普通攻击技能，enemy是敌人; enemy.life_value-=self.aggressivity #根据自己的攻击力，攻击敌人就减掉敌人的生命值。 # g1 = Garen('草丛伦') # g2 = Garen('草丛伦2') # g3 = Garen('草丛伦3') # print(g1.hobby,id(g1.hobby)) # print(g2.hobby,id(g2.hobby)) # print(g3.hobby,id(g3.hobby)) # # # # # g1.camp='123123123123' # g1.hobby.append('g1 hobby') # g2.hobby.append('g2 hobby') # g3.hobby.append('g3 hobby') # print(g1.hobby) #类的两种用法：实例化和属性引用 #一：实例化 # g1 = Garen('草丛伦') # print(g1.__dict__) #二：属性引用，类的属性就两种:变量和函数 # print(Garen.camp) # print(Garen.xxxx) # print(Garen.attack123) # print(Garen.__dict__) # print(Garen.camp) # print(Garen.attack) #'attack' # # Garen.camp='123123123123123' # Garen.x=123 #Garen.__dict__['x']=123 # print(Garen.__dict__) # Garen.x=1 # print(Garen.__dict__) # del Garen.camp # print(Garen.__dict__) #实例就一种用法：属性引用，且实例本身就只有 # g1 = Garen('草丛伦') # print(g1.nickname) # print(g1.aggressivity) # print(g1.life_value) #增，删，改，查实例属性，略 #类的名称空间与实例的名称空间 #类的变量是所有对象共享的 class Garen: #定义英雄盖伦的类，不同的玩家可以用它实例出自己英雄; camp='Demacia' #所有玩家的英雄(盖伦)的阵营都是Demacia; n=0 # hobby=[] def __init__(self,nickname,aggressivity=58,life_value=455): #英雄的初始攻击力58...; self.nickname=nickname #为自己的盖伦起个别名; self.aggressivity=aggressivity #英雄都有自己的攻击力; self.life_value=life_value #英雄都有自己的生命值; Garen.n+=1 self.hobby=[] def attack(self,enemy): #普通攻击技能，enemy是敌人; enemy.life_value-=self.aggressivity #根据自己的攻击力，攻击敌人就减掉敌人的生命值。 # g1 = Garen('草丛伦') # g2 = Garen('草丛伦2') # g3 = Garen('草丛伦3') # # print(g1.camp) # # print(g2.camp) # # Garen.camp=123 # # print(g3.camp) # # print(g1.camp) # # print(g2.camp) # print(g1.hobby,id(g1.hobby)) # print(g2.hobby,id(g2.hobby)) # print(g3.hobby,id(g3.hobby)) # # # # # g1.camp='123123123123' # g1.hobby.append('g1 hobby') # g2.hobby.append('g2 hobby') # g3.hobby.append('g3 hobby') # print(g1.hobby) # # g1.camp='123123123123' # # print(g1.camp) # # print(g2.camp) # # print(g3.camp) # # # print(g1.__dict__) # print(g1.n) # print(g3.n) # print(Garen.n) #类的函数是绑定到每个对象的，每个对象绑定方法都是不一样的，但都是同一种功能 class Garen: #定义英雄盖伦的类，不同的玩家可以用它实例出自己英雄; camp='Demacia' #所有玩家的英雄(盖伦)的阵营都是Demacia; n=0 # hobby=[] def __init__(self,nickname,aggressivity=58,life_value=455): #英雄的初始攻击力58...; self.nickname=nickname #为自己的盖伦起个别名; self.aggressivity=aggressivity #英雄都有自己的攻击力; self.life_value=life_value #英雄都有自己的生命值; Garen.n+=1 self.hobby=[] def attack(self,enemy): #普通攻击技能，enemy是敌人; print('=====>',self) print('=====>',enemy) # enemy.life_value-=self.aggressivity #根据自己的攻击力，攻击敌人就减掉敌人的生命值。 g1 = Garen('草丛伦') # print(g1.attack) # print(Garen.attack) # g1.attack(g1) #Garen.attack(g1,g1) #
继承类 # class ParentClass1: #定义父类 # pass # # class ParentClass2: #定义父类 # pass # # class SubClass1(ParentClass1): #单继承，基类是ParentClass1，派生类是SubClass # pass # # class SubClass2(ParentClass1,ParentClass2): #python支持多继承，用逗号分隔开多个继承的类 # pass # # print(ParentClass1.__bases__) # print(SubClass1.__bases__) # print(SubClass2.__bases__) # class Aniaml: # def __init__(self,name,age): # self.name=name # self.age=age # # def walk(self): # print('%s is walking' %self.name) # # def say(self): # print('%s is saying' %self.name) # # # class People(Aniaml): # pass # # class Pig(Aniaml): # pass # # class Dog(Aniaml): # pass # # # p1=People('obama',50) # print(p1.name) # print(p1.age) # p1.walk() # # class Hero: # def __init__(self, nickname, # aggressivity, # life_value): # self.nickname = nickname # self.aggressivity = aggressivity # self.life_value = life_value # # def attack(self, enemy): # enemy.life_value -= self.aggressivity # # class Garen(Hero): # camp='Demacia' # def attack(self, enemy): # pass # def fire(self): # print('%s is firing' %self.nickname) # class Riven(Hero): # camp='Noxus' # g1=Garen('garen',18,200) # r1=Riven('rivren',18,200) # # print(g1.camp) # # print(r1.camp) # # g1.fire() # g1.attack(g1) #派生 # class Hero: # def __init__(self, nickname,aggressivity,life_value): # self.nickname = nickname # self.aggressivity = aggressivity # self.life_value = life_value # def attack(self, enemy): # print('Hero attack') # class Garen(Hero): # camp = 'Demacia' # # def attack(self, enemy): #self=g1,enemy=r1 # # self.attack(enemy) #g1.attack() # Hero.attack(self,enemy) # print('from garen attack') # # def fire(self): # print('%s is firing' % self.nickname) # class Riven(Hero): # camp = 'Noxus' # g1 = Garen('garen', 18, 200) # r1 = Riven('rivren', 18, 200) # g1.attack(r1) # # print(g1.camp) # # print(r1.camp) # # g1.fire() class Hero: def __init__(self, nickname, aggressivity, life_value): self.nickname = nickname self.aggressivity = aggressivity self.life_value = life_value def attack(self, enemy): print('Hero attack') enemy.life_value -= self.aggressivity # print(Hero.__init__) # print(Hero.attack) class Garen(Hero): camp = 'Demacia' def __init__(self, nickname, aggressivity, life_value, script): Hero.__init__(self,nickname,aggressivity,life_value) # self.nickname = nickname # self.aggressivity = aggressivity # self.life_value = life_value self.script = script def attack(self, enemy): # self=g1,enemy=r1 # self.attack(enemy) #g1.attack() Hero.attack(self, enemy) print('from garen attack') def fire(self): print('%s is firing' % self.nickname) # g1=Garen('garen',18,200) #Garen.__init__(g1,'garen',18,200) g1=Garen('garen',18,200,'人在塔在') #Garen.__init__(g1,'garen',18,200) print(g1.script)
组合 class Teacher: def __init__(self,name,sex,course): self.name=name self.sex=sex self.course=course class Student: def __init__(self,name,sex,course): self.name=name self.sex=sex self.course=course class Course: def __init__(self,name,price,peroid): self.name=name self.price=price self.period=peroid python_obj=Course('python',15800,'7m') t1=Teacher('egon','male',python_obj) s1=Student('cobila','male',python_obj) print(s1.course.name) print(t1.course.name) class Teacher: def __init__(self,name,sex,course_name,course_price,course_period): self.name=name self.sex=sex self.course_name=course_name self.course_price=course_price self.course_period=course_period class Student: def __init__(self,name,sex,course_name,course_price,course_period): self.name=name self.sex=sex self.course_name=course_name self.course_price=course_price self.course_period=course_period t1=Teacher('egon','male','python',15800,'7m') s1=Student('cobila','male','python',15800,'7m') print(s1.course.name) print(t1.course.name) #老师、学生与课程 #老师、学生与生日 #学生与分数
接口与归一化设计 python中没有接口这一概念，都是用继承来实现 class Animal: def run(self): raise AttributeError('子类必须实现这个方法') def speak(self): raise AttributeError('子类必须实现这个方法') class People(Animal): def run(self): print('人正在走') # def speak(self): # print('说话') class Pig(Animal): def run(self): print('pig is walking') def speak(self): print('哼哼哼') peo1=People() # peo1.run() peo1.speak() # peo1=People() # pig1=Pig() # # peo1.run() # pig1.run() # class Interface:#定义接口Interface类来模仿接口的概念，python中压根就没有interface关键字来定义一个接口。 # def read(self): #定接口函数read # pass # # def write(self): #定义接口函数write # pass # # # class Txt(Interface): #文本，具体实现read和write # def read(self): # print('文本数据的读取方法') # # def write(self): # print('文本数据的读取方法') # # class Sata(Interface): #磁盘，具体实现read和write # def read(self): # print('硬盘数据的读取方法') # # def write(self): # print('硬盘数据的读取方法') # # class Process(Interface): # def read(self): # print('进程数据的读取方法') # # def write(self): # print('进程数据的读取方法') # # # # t1=Txt() # s1=Sata() # p1=Process() # # # # t1.read() # t1.write() # # s1.read() # s1.write() # # p1.read() # p1.write()
抽像类 import abc #抽象类：本质还是类，与普通类额外的特点的是：加了装饰器的函数，子类必须实现他们 class Animal(metaclass=abc.ABCMeta): tag='123123123123123' @abc.abstractmethod def run(self): pass @abc.abstractmethod def speak(self): pass class People(Animal): def run(self): pass def speak(self): pass peo1=People() print(peo1.tag)
继承类