Python classes and inheritance operation code examples
Post the code you wrote directly for reference:
#encoding=utf-8 __author__ = 'Administrator' # 类的定义 # **kw 在创建类的实例对象的时候动态的给对象添加参数 class Person(object): def __init__(self,name,age,**kw): ##每个类都有个init 方法 self.name = name self.age = age for k,v in kw.iteritems(): setattr(self,k,v) ## 用setattr 将动态属性赋值给类对象 class Teacher(Person): #继承Person类 __score=0 ## 定义类的私有属性 不能被外界访问 def __init__(self,name,age,score): self.__score = score super(Teacher,self).__init__(name,age) ##继承父类的初始化方法 print "Teacher.__score =",self.__score #---方法也分类方法和实例方法 #定义类方法 @classmethod 声明 可以直接用Teacher.getScoreForClass()来调用 @classmethod def getScoreForClass(cls): return cls.__score #定义实例方法 直接用Teacher.getScoreForClass()来调用会报错 # p.getScoreForExample() def getScoreForExample(self): return self.__score from types import MethodType if __name__ =="__main__": #te = Person("TOM",35,addr="USA",sex="M") ## 类的实例对象 te ''' 可以直接改变对象实例的值,如: te.name = "BOB" 也可以直接给对象实例添加属性,如: te.lover = "SUM" 这样并没有给类添加属性,当你在此常见一个类实例时是没有刚才添加的属性的 ''' print "befor:", Teacher.getScoreForClass() p = Teacher("TOM",33,100) print "after :", p.getScoreForExample() print "after :",Teacher.getScoreForClass()

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