Python学习之路：总结

 

类

 

　　属性

 

　　　　实例变量

 

　　　　类变量

 

　　　　私有属性

 

　　方法

 

　　　　构造方法：初始化实例

 

　　　　析构方法（函数）

 

　　　　私有方法　　　

 

对象：实例化一个之后得到的对象

 

封装

 

　　把一些功能的实现细节不对暴露

 

继承

 

　　代码的重用

 

　　单继承

 

　　多继承

 

　　　　2.7 经典类，深度优先；新式类，广度优先

 

　　　　3.x均是广度优先

 

class SchoolMember(object):
    # member = 0

    def __init__(self,name,age,sex):
        self.name = name
        self.age = age
        self.sex = sex
    #     self.enroll()
    #
    # def enroll(self):
    #     print("just enrolled a new school member [%s]"%self.name)
    #     self.member += 1


    # def tell(self):
    #
    #     print("---info: %s----"% self.name)
    #     for k,v in self.__dict__.items():
    #         print("\t",k,v)
    #
    #     print("--------end---------")
    #
    # def __del__(self):
    #     print("开除了[%s]..." % self.name)
    #     SchoolMember.member -= 1

class School(object):
    def open_branch(self,addr):
        print("opening a new branch in " ,addr)

school = School()
class Teacher(SchoolMember,School):#多继承
    def __init__(self,name,age,sex,salary,course,school_obj):
        #SchoolMember.__init__(self,name,age,sex) #经典类写法
        super(Teacher,self).__init__(name,age,sex) #新式类写法
        self.school =school_obj
        self.salary = salary
        self.course = course


    def teaching(self):
        print("Teacher [%s] is teaching [%s]"%(self.name,self.course))

# class  Student(SchoolMember):
#     def __init__(self,name,age,sex,course,tuition):
#         SchoolMember.__init__(self,name,age,sex)
#         self.course = course
#         self.tuition = tuition
#         self.amount = 0
#
#
#
#     def pay_tuition(self,amount):
#         print("student [%s] has just paid [%s]"% (self.name,amount))
#         self.amount += amount

t1 = Teacher("Wusir",22,"F*M",3000,"Python","ShangHai")
# s1 = Student("HaiTao",30,"M","PYS15",300000)
# s2 = Student("LiChuang",12,"M","PYS15",11000)
#
# print(SchoolMember.member)
# t1.tell()
# s2.tell()
# t1.open_branch("ShangHai")