python学习之面向对象【入门初级篇】

class ProtectMe(object): 
 def __init__(self):
 self.me = "qiwsir"
 self.__name = "kivi"
 
 def __python(self):
 print("I love Python.") 
 
 def code(self):
 print9"Which language do you like?"）
 self.__python()
 
if __name__ == "__main__":
 p = ProtectMe()
 print(p.me)
 print(p.__name)
 
#运行结果
qiwsir
Traceback (most recent call last):
 File "21102.py", line 21, in <module>
 print p.__name
AttributeError: 'ProtectMe' object has no attribute '__name'　

class ProtectMe(object): 
 def __init__(self):
 self.me = "qiwsir"
 self.__name = "kivi"
 
 @property
 def name(self):
 return self.__name
 
if __name__ == "__main__":
 p = ProtectMe()
 print(p.name)

#运行结果
 kivi 

class Role(object):
 ac = None #类变量
 def __init__(self,name,role,weapon,life_value):
 #初始化方法
 self.name = name #实例变量（成员变量）
 self.role = role
 self.weapon = weapon
 self.life_val = life_value
 
 def buy_weapon(self,weapon): #定义方法
 #self：表示实例本身
 self.weapon = weapon
 # print("%s is buying [%s]" %(self.name,weapon))
 
#把一个抽象的类变成一个具体的对象的过程，叫实例化
 
p1 = Role("sanjiang",'Police',"B10",90) #实例
t1 = Role("Chunyun",'Terrorist',"B11",100)

class SchoolMember(object):
 # member_nums = 0
 def __init__(self,name,age,sex):
 self.name = name
 self.age = age
 self.sex = sex
 # self.enroll()
 
 def enroll(self):
 SchoolMember.member_nums += 1
 print("SchoolMember [%s] is enrolled!" %self.name)
 
 def tell(self):
 print("Hello my name is [%s]" %self.name)
 
class Teacher(SchoolMember):
 def __init__(self,name,age,sex,course,salary): #重写父类的__init__方法
 super(Teacher,self).__init__(name,age,sex) #继承（新式类）
 # SchoolMember.__init__(self,name,age,sex) #继承（旧式类）
 self.course = course
 self.salary = salary
 
 def teaching(self):
 print("Teacher [%s] is teaching [%s]" %(self.name,self.course))
 
 
 
class Student(SchoolMember):
 def __init__(self,name,age,sex,course,tuition):
 super(Student,self).__init__(name,age,sex)
 self.course = course
 self.tuition = tuition
 
 def pay_tuition(self):
 print("ca,student [%s] paying tuition [%s] again" %(self.name,self.tuition))