Don't know which part I made the mistake

最新推荐文章于 2024-09-22 15:41:58 发布

Rubywzy

最新推荐文章于 2024-09-22 15:41:58 发布

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分类专栏： Pyhon学习笔记

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博客主要讲述实践内容，创建名为User的类，包含first_name和last_name等属性，还有describe_user和greet_user方法。博主给出自己的答案，虽认为步骤正确，但出现错误代码，感到困惑。

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Practise:
Make a class called User. Create two attributes called first_name and last_name, and then create several other attributes that are typically stored in a user profile. Make a method calleddescribe_user() that prints a summary of the user’s information. Make another method calledgreet_user() that prints a personalized greeting to the user.

My answer

class User():
    '''build a class named user'''

    def _init_(self, first_name, last_name, age, gender):
        self.first_name = first_name
        self.last_name = last_name
        self.age = age
        self.gender = gender


    def describe_user(self):
        '''print the user's info'''
        print("Your first name is: " + self.first_name.title() + ".")
        print("Your last name is: " + self.last_name.title() + ".")
        print("Your age is: " + self.age.title() + ".")
        print("Your gender is: " + self.gender.title() + ".")
  
    
    def greet_user(self):
       '''say hello to the user'''
       print("Hello, " + self.first_name.title() + " " + self.last_name.title() + ", nice to see you here. Hope you have a good time today!")


user_one = User("Ribon", "Woo", "18", "female")
user_one.describe_user()
user_one.greet_user()

user_two = User("Jack", "Jones", "23", "male")
user_two.describe_user()
user_two.greet_user()

user_three = User("Rebecca", "Cai", "98", "female")
user_three.describe_user()
user_three.greet_user()

user_four = User("Tina", "Faye", "56", "female") 
user_four.describe_user()
user_four.greet_user()

and the textbook’s answer:

class User():
    """Represent a simple user profile."""
 
    def __init__(self, first_name, last_name, username, email, location):
        """Initialize the user."""
        self.first_name = first_name.title()
        self.last_name = last_name.title()
        self.username = username
        self.email = email
        self.location = location.title()
 
    def describe_user(self):
        """Display a summary of the user's information."""
        print("\n" + self.first_name + " " + self.last_name)
        print("  Username: " + self.username)
        print("  Email: " + self.email)
        print("  Location: " + self.location)
 
    def greet_user(self):
        """Display a personalized greeting to the user."""
        print("\nWelcome back, " + self.username + "!")
 
eric = User('eric', 'matthes', 'e_matthes', 'e_matthes@example.com', 'alaska')
eric.describe_user()
eric.greet_user()
 
willie = User('willie', 'burger', 'willieburger', 'wb@example.com', 'alaska')
willie.describe_user()
willie.greet_user()

I thinke I followed the right steps, but get this error code:

TypeError
User() takes no arguments
  File "F:\Ruby\PYTHON\Python Crash Course\PCC_9\PCC_9_3.py", line 24, in <module>
    user_one = User("Ribon", "Woo", "18", "female")

Confused.