9-4 就餐人数/ 9-5 尝试登录次数

1. 题目

 

2. 代码

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class Restaurant():     def __init__(self, restaurant_name, cuisine_type):         self.restaurant_name = restaurant_name         self.cuisine_type = cuisine_type         self.number_served = 0  # 添加属性，设置默认值为0       def describle_restaurant(self):         print(self.restaurant_name, self.cuisine_type)       def open_restaurant(self):         print("Now is opening...")       def read_restaurant(self):         print("The restaurant have " + str(self.number_served) + ' people eating.')       def set_number_served(self, member):    # 添加方法，设置就餐人数         self.number_served = member       def increment_number_served(self, members): # 添加方法，设置递增人数         self.number_served += members   restaurant = Restaurant('Kaoyu',10) # 创建实例 restaurant.read_restaurant()    # 初始化设置为0   restaurant.number_served = 30   # 修改值 restaurant.read_restaurant()   restaurant.set_number_served(100) # 调用方法，传值 restaurant.read_restaurant()   restaurant.increment_number_served(200) restaurant.read_restaurant() print(">>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>")     class User():   # 创建User类     def __init__(self, first_name, last_name, age, address, phone): # 属性         self.first_name = first_name         self.last_name = last_name         self.age = age         self.address = address         self.phone = phone         self.login_attempts = 0 # 添加属性       def describe_user(self):    # 方法         print(self.first_name,               self.last_name,               self.age,               self.address,               self.phone)       def greet_user(self):   # 方法         print("How beautiful name " + self.last_name + self.last_name,               "\n too young, too simple", "your homeland " + self.address               + " is a warm place, ", "could you tell me your contact?")       def increment_login_attempts(self, number1):    # 递增方法         self.login_attempts += number1  # 值加1         print("共登录用户量：" + str(self.login_attempts))       def reset_login_attempts(self, number2):    # 重置方法，重置为0         self.login_attempts = 0         print("共登录用户量：" + str(self.login_attempts))   user = User('Michile', 'Jadon', 40, 'Chicago', 10089)   # 创建实例 user.increment_login_attempts(1)    #调用递增方法   user.reset_login_attempts(0) # 调用重置方法   user.increment_login_attempts(1)    #调用递增 user.increment_login_attempts(1)    #再次调用 user.increment_login_attempts(1)    #第三次调用，此时值应该为3（每次递增1）

　　3. 执行结果

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D:\python编程：从入门到实践\venv\Scripts\python.exe D:/python编程：从入门到实践/Restaturant02.py The restaurant have 0 people eating. The restaurant have 30 people eating. The restaurant have 100 people eating. The restaurant have 300 people eating. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> 共登录用户量：1 共登录用户量：0 共登录用户量：1 共登录用户量：2 共登录用户量：3   Process finished with exit code 0