python 学习day 7
作者:互联网
1、代码学习部分
class Restaurant(): def __init__(self,restaurant_name,cuisine_name): self.restaurant_name=restaurant_name #第一个restaurant_name是定义的变量 第二个是形参 self.cuisine_name=cuisine_name def describe_restaurant(self): print("The name of restaurant is "+self.restaurant_name, "Food type is "+self.cuisine_name) def open_restaurant(self): print("The restaurant is open.") restaurant=Restaurant('zhongcanting','Chinese food') restaurant.describe_restaurant() restaurant.open_restaurant() class Restaurant(): def __init__(self,restaurant_name,cuisine_name): self.restaurant_name=restaurant_name self.cuisine_name=cuisine_name def describe_restaurant(self): print("The name of restaurant is "+self.restaurant_name, "Food type is "+self.cuisine_name) def open_restaurant(self): print("The restaurant is open.") restaurant1=Restaurant('zhongcanting','Chinese food') restaurant2=Restaurant('western restaurant','western food') restaurant3=Restaurant('Michelin','western food') restaurant1.describe_restaurant() restaurant2.describe_restaurant() restaurant3.describe_restaurant() class User(): def __init__(self,first_name,last_name): self.first_name=first_name self.last_name=last_name def describe_user(self): print("Your full name is "+self.first_name+self.last_name) def greet_user(self): print("Good morning, "+self.first_name+self.last_name) user=User('zhang','yongkang') user.describe_user() user.greet_user() #9.2节 使用类和实例 class Restaurant(): def __init__(self,restaurant_name,cuisine_name): self.restaurant_name=restaurant_name #第一个restaurant_name是定义的变量 第二个是形参 self.cuisine_name=cuisine_name self.number_served=0 def describe_restaurant(self): print("The name of restaurant is "+self.restaurant_name, "Food type is "+self.cuisine_name) def open_restaurant(self): print("The restaurant is open.") def set_number_served(self,number_updated): self.number_served=number_updated def increment_number_served(self,increment): self.number_served+=increment restaurant=Restaurant('zhongcanting','Chinese food') print("The number served in the restautant is "+str(restaurant.number_served)+".") restaurant.number_served=3 print("The number served in the restautant is "+str(restaurant.number_served)+".") restaurant.set_number_served(6) print("The number served in the restautant is "+str(restaurant.number_served)+".") restaurant.increment_number_served(10) print("The number served in the restautant is "+str(restaurant.number_served)+".") class User(): def __init__(self,first_name,last_name): self.first_name=first_name self.last_name=last_name self.login_attempts=0 def describe_user(self): print("Your full name is "+self.first_name+self.last_name) def greet_user(self): print("Good morning, "+self.first_name+self.last_name) def increment_login_attempts(self): self.login_attempts+=1 def reset_login_attempts(self): self.login_attempts=0 user=User('zhang','yongkang') #创建实例 user.increment_login_attempts() user.increment_login_attempts() user.increment_login_attempts() user.increment_login_attempts() print("The number of login_attempt is "+str(user.login_attempts)) user.reset_login_attempts() print("The number of login_attempt is "+str(user.login_attempts)) #继承 class Restaurant(): def __init__(self,restaurant_name,cuisine_name,icecream_name): self.restaurant_name=restaurant_name #第一个restaurant_name是定义的变量 第二个是形参 self.cuisine_name=cuisine_name self.number_served=0 self.flavors=icecream_name def describe_restaurant(self): print("The name of restaurant is "+self.restaurant_name, "Food type is "+self.cuisine_name) def open_restaurant(self): print("The restaurant is open.") def set_number_served(self,number_updated): self.number_served=number_updated def increment_number_served(self,increment): self.number_served+=increment def describe_icecream(self): print(self.flavors) class IceCreamStand(Restaurant): def __init__(self,restaurant_name,cuisine_name,icecream_name): super().__init__(restaurant_name,cuisine_name,icecream_name) printed_icecream=IceCreamStand('zhongcanting','Chinese food','shengdai') print(printed_icecream.flavors) class User(): def __init__(self,first_name,last_name): self.first_name=first_name self.last_name=last_name self.login_attempts=0 self.privileges = ['can add post', 'can delete post', 'can ban user'] def describe_user(self): print("Your full name is "+self.first_name+self.last_name) def greet_user(self): print("Good morning, "+self.first_name+self.last_name) def increment_login_attempts(self): self.login_attempts+=1 def reset_login_attempts(self): self.login_attempts=0 def show_Privileges(self): print(self.privileges) class Admin(User): def __init__(self,first_name,last_name): super().__init__(first_name,last_name) privileges_show=Admin('zhang','yongkang') privileges_show.show_Privileges() #9-8 权限 class Privileges(): def __init__(self): self.Privileges=['can add post', 'can delete post', 'can ban user'] def show_Privileges(self): print(self.privileges) class Admin(User): def __init__(self,first_name,last_name): super().__init__(first_name,last_name) self.showPrivileges=Privileges() #实例用作属性 privileges_show=Admin('zhang','yongkang') privileges_show.show_Privileges() #9-9电瓶升级 #略 #9.4 导入类 from restaurant import Restaurant restaurant=Restaurant('zhongcanting','Chinese food','shengdai') restaurant.describe_restaurant() from users import User,Admin,Privileges privileges_show=Admin('zhang','yongkang') privileges_show.show_Privileges()
2、学习疑问与心得
2.1、在Python中,首字母大写的名称指的是类,模块名誉实例名都用小写
2.2、类中的函数称为方法
2.3、创建实例:my_dog=Dog('While',6) 通产可以认为首字母大写的名称是类 而小写的名称(例如my_dog)是根据类 创建的实例
2.4、创建子类时,父类必须包含在当前文件中
2.5、对于每个类,都应紧跟在类定义后面包含一个文档字符串,(即三个引号圈起来的那段文字)简短地描述类的功能。每个模块也都应包含一个文档字符串
标签:__,name,restaurant,python,self,number,学习,day,def 来源: https://www.cnblogs.com/ayon666/p/11496449.html