《Python程式設計》第九章部分課後練習題

#9-4 就餐人數：

程式碼：

# 9-4 就餐人數


class Restaurant():
	"""define one restaurant class"""
	
	def __init__(self, name, cuisine_type):
		self.restaurant_name = name
		self.cuisine_type = cuisine_type
		self.number_served = 0
	
	def describe_restaurant(self):
		message = "This restaurant's name is: " + self.restaurant_name + "\n"
		message += "The type of cuisine is: " + self.cuisine_type + "\n"
		message += "Today it has served " + str(self.number_served) + "\n"
		print(message)
		
	def open_restaurant(self):
		message = "The restuarant is running "
		print(message)
		
	def set_number_served(self, num):
		self.number_served = num
	
	def increment_number_served(self):
		self.number_served += 1
		
restaurant = Restaurant('China Town', 'Chinese cuisine')
restaurant.describe_restaurant()
restaurant.open_restaurant()


restaurant.set_number_served(666)
restaurant.describe_restaurant()


restaurant.increment_number_served()
restaurant.describe_restaurant()

輸出：

This restaurant's name is: China Town
The type of cuisine is: Chinese cuisine
Today it has served 0


The restuarant is running
This restaurant's name is: China Town
The type of cuisine is: Chinese cuisine
Today it has served 666


This restaurant's name is: China Town
The type of cuisine is: Chinese cuisine
Today it has served 667

#9-5 嘗試登入次數：

程式碼：

#9-5 嘗試登入次數

class User():
	"""define a class called User, including name and other informations"""
	
	def __init__(self, first_name, last_name, login_attempts, **info):
		self.first_name = first_name
		self.last_name = last_name
		self.login_attempts = login_attempts
		self.info = info
		
	def describe_user(self):
		message = "The user's name is " + self.first_name.title() + " " + self.last_name.title() + '\n'
		for key, value in self.info.items():
			message += key.title() + ": " + value.title() + '\n'
		print(message)
	
	def greet_user(self):
		message = "Hello, Dear " + self.first_name.title() + " " + self.last_name.title()
		print(message)
		
	def increment_login_attempts(self):
		self.login_attempts += 1
		
	def reset_login_attempts(self):
		self.login_attempts = 0
		
user = User("kobe", "branyt", 10, country = 'america', age = '38')
user.describe_user()
user.greet_user()

print(user.login_attempts)
for a in range(666):
	user.increment_login_attempts()
print(user.login_attempts)

user.reset_login_attempts()
print(user.login_attempts)

輸出：

The user's name is Kobe Branyt
Country: America
Age: 38

Hello, Dear Kobe Branyt
10
676
0

#9-6 冰淇淋小店：

程式碼：

#9-6 冰淇淋小店

class Restaurant():
	"""define one restaurant class"""
	
	def __init__(self, name, cuisine_type):
		self.restaurant_name = name
		self.cuisine_type = cuisine_type
		self.number_served = 0
	
	def describe_restaurant(self):
		message = "This restaurant's name is: " + self.restaurant_name + "\n"
		message += "The type of cuisine is: " + self.cuisine_type + "\n"
		message += "Today it has served " + str(self.number_served) + "\n"
		print(message)
		
	def open_restaurant(self):
		message = "The restuarant is running\n"
		print(message)
		
	def set_number_served(self, num):
		self.number_served = num
	
	def increment_number_served(self):
		self.number_served += 1
		
		
class  IceCreamStand(Restaurant):
	"""inherit the class Restaurant"""
	def __init__(self, name, cuisine_type, flavors):
		super().__init__(name, cuisine_type)
		self.flavors = flavors
		
	def show_IceCream_flavors(self):
		message = self.restaurant_name + " have different " + self.cuisine_type + ": "
		print(message)
		for value in self.flavors:
			print(value)

flavors = ['Coffee and Cookie ice cream', 'Chocolate ice cream', 'Cherry ice cream']
Stand = IceCreamStand('Ice Cream Stand', 'Ice Cream', flavors)

Stand.describe_restaurant()
Stand.open_restaurant()
Stand.show_IceCream_flavors()

輸出：

This restaurant's name is: Ice Cream Stand
The type of cuisine is: Ice Cream
Today it has served 0

The restuarant is running

Ice Cream Stand have different Ice Cream:
Coffee and Cookie ice cream
Chocolate ice cream
Cherry ice cream

#9-7 管理員：

程式碼：

#9-7 管理員

class User():
	"""define a class called User, including name and other informations"""
	
	def __init__(self, first_name, last_name, login_attempts, **info):
		self.first_name = first_name
		self.last_name = last_name
		self.login_attempts = login_attempts
		self.info = info
		
	def describe_user(self):
		message = "The user's name is " + self.first_name.title() + " " + self.last_name.title() + '\n'
		for key, value in self.info.items():
			message += key.title() + ": " + value.title() + '\n'
		print(message)
	
	def greet_user(self):
		message = "Hello, Dear " + self.first_name.title() + " " + self.last_name.title()
		print(message)
		
	def increment_login_attempts(self):
		self.login_attempts += 1
		
	def reset_login_attempts(self):
		self.login_attempts = 0
		
		
class Admin(User):
	"""define a special user, Admin"""
	
	def __init__(self, first_name, last_name, login_attempts, privileges, **info):
		super().__init__(first_name, last_name, login_attempts, **info)
		self.privileges = privileges
	
	def show_privileges(self):
		message = "You " + self.privileges
		print(message)
		
admin = Admin("kobe", "branyt", 10, "can do everything", country = 'america', age = '38')
admin.describe_user()
admin.greet_user()

admin.show_privileges()

輸出：

The user's name is Kobe Branyt
Country: America
Age: 38

Hello, Dear Kobe Branyt
You can do everything

#9-8 許可權：

程式碼：

#9-8 許可權

class User():
	"""define a class called User, including name and other informations"""
	
	def __init__(self, first_name, last_name, login_attempts, **info):
		self.first_name = first_name
		self.last_name = last_name
		self.login_attempts = login_attempts
		self.info = info
		
	def describe_user(self):
		message = "The user's name is " + self.first_name.title() + " " + self.last_name.title() + '\n'
		for key, value in self.info.items():
			message += key.title() + ": " + value.title() + '\n'
		print(message)
	
	def greet_user(self):
		message = "Hello, Dear " + self.first_name.title() + " " + self.last_name.title()
		print(message)
		
	def increment_login_attempts(self):
		self.login_attempts += 1
		
	def reset_login_attempts(self):
		self.login_attempts = 0
		
		
class Admin(User):
	"""define a special user, Admin"""
	
	def __init__(self, first_name, last_name, login_attempts, privileges,  **info):
		super().__init__(first_name, last_name, login_attempts, **info)
		self.privileges = Privileges(privileges)
	
	def show_privileges(self):
		message = "You " + self.privileges.privileges
		print(message)
		

class Privileges():
	"""define the property of Admin"""
	def __init__(self, privileges):
		self.privileges = privileges
		
admin = Admin("kobe", "branyt", 10, "can do everything", country = 'america', age = '38')
admin.describe_user()
admin.greet_user()

admin.show_privileges()

輸出：

The user's name is Kobe Branyt
Country: America
Age: 38

Hello, Dear Kobe Branyt
You can do everything