Python编程从入门到实践 9-7管理员

   管理员是一种特殊的用户。编写一个名为Admin 的类，让它继承你为完成练习9-3或练习9-5而编写的User 类。添加一个名为privileges 的属性，用 于存储一个由字符串（如"can add post" 、"can delete post" 、"can ban user" 等）组成的列表。编写一个名为show_privileges() 的方法，它 显示管理员的权限。创建一个Admin 实例，并调用这个方法。 

   

#!/iser/bin/env python
# coding:utf-8
class User(object):
	def __init__(self,first_name,last_name,age,phone_number):
		self.first_name=first_name
		self.last_name=last_name
		self.age=age
		self.phone_number=phone_number

	def describe_user(self):
		full_name=self.first_name+" "+self.last_name
		print(full_name+" is "+str(user_one.age)+" years old,and he's phone number is "+user_one.phone_number+".")
	def greet_user(self):
		full_name=self.first_name+" "+self.last_name
		print("Hello,"+full_name+" !")
class Admin(User):
	def __init__(self,first_name,last_name,age,phone_number):
		super(Admin,self).__init__(first_name,last_name,age,phone_number)
		self.privileges=["can add post","can delete post","can ban user"]
	def show_privileges(self):
		print("The power of admin are:")
		for privilege in self.privileges:
			print(privilege)
user_one=User('Jackson','Yee',18,'1234567890')
user_one.describe_user()
user_one.greet_user()

admin=Admin('Jackson','Yee',18,'1234567890')
admin.show_privileges()

结果为