python-面向对象-类的继承-单继承

1.继承是python面向对象的三大特性之一，是一种创建新类的方式，python中的继承，可以继承一个或者继承多个父类，新建的类被称之为派生类或者子类，被继承的类是父类，可以称之为基类，超类，继承是实现代码重用的重要方式。

#coding=utf-8;
class father(object):
    #父类初始化方法
    def __init__(self,id):
        self.id=id;
    #父类类方法
    @classmethod
    def classmethod_father(cls,id,where):
        print(id,"father working...",where);
    #父类静态方法
    @staticmethod
    def staticmethod_father(a,b,c):
        print(a,b,c,"father static method...");
    #父类普通方法
    def publicmethod_father(self,id,name):
        #id=self.id;
        #name=self.name;
        print("id:",id,"name:",name);

class son(father):
    def __init__(self,sonid):
        super().__init__(id);
        self.sonid=sonid;
    @classmethod
    def classmethod_son(cls,sonid,sondo):
        print("调用者：",sonid,"son classmethod_son")
    @staticmethod
    def staticmethod_son(who):
        print("调用者:",who,"son static method ...");
    def public_son(self,who):
        print("调用者:",who,"son public method...");
class grandson(son):
    def __init__(self,grandson_id):
        self.grandson_id=grandson_id;
    @classmethod
    def classmethod_grandson(cls,who):
        print("调用者",who,"grandson classmethod ...");
    @staticmethod
    def staticgrandson(who):
        print("调用者","grandson staticmethod...");
    def public_grandson(self,who):
        print("调用者",who,"grandson public...");
#设置一个变量
fathername="tom";
fatherid=123;
#father实例化
f=father(fatherid);
f.classmethod_father(fatherid,"北京");
f.staticmethod_father(111,222,333);
f.publicmethod_father(fatherid,fathername);
#father类调用
father.classmethod_father(888,"father类调用");
father.staticmethod_father("aaa","bbb","ccc");
father.publicmethod_father(1,100,"tom")
#son实例调用
s = son(12345);
s.classmethod_father(fatherid,"北京");
s.staticmethod_father(111,222,333);
s.publicmethod_father(fatherid,fathername);
s.classmethod_son(12345,"上海");
s.staticmethod_son("son")
s.public_son("son");
#grandson实例调用
gs=grandson("1234578");
gs.classmethod_grandson("grandson");
gs.staticgrandson("grandson");
gs.public_grandson("grandson");

运行结果：

123 father working... 北京
111 222 333 father static method...
id: 123 name: tom
888 father working... father类调用
aaa bbb ccc father static method...
id: 100 name: tom
123 father working... 北京
111 222 333 father static method...
id: 123 name: tom
调用者： 12345 son classmethod_son
调用者: son son static method ...
调用者: son son public method...
调用者 grandson grandson classmethod ...
调用者 grandson staticmethod...
调用者 grandson grandson public...