电影游戏 - 在电影开头跳过“The”

Question

The Movie Game is a game played by two people, and goes as follows. The first player names a movie. The second player then names a new movie whose title starts with the last letter of the movie the first player named.

The game we will ignore the definite article "the" So if a player names the movie "Her Alibi" the next player can name the movie "The Incredibles," since the article "the" is ignored.

How can I remove "The" from the movie title?

def userInput(lastInput):
    if lastInput == None:
            return str(input("Enter a movie title: ")).lower()
    if lastInput[:4] == "The ": # doesn't work
        lastInput = lastInput[4:] # doesn't work
    while True:
        userChoice = str(input("Enter a movie title: ")).lower()
        if userChoice[0] == lastInput[-1]:
            return userChoice
        else:
            print("\nInvalid input, what would you like to do?")
            instructions()

Answer 1

You can replace the Part of the string In The case You Mentioned THE with an empty string , use The following Code to Remove the word You want from the string

str="The Incredibles"
str.replace("The","")

Answer 2

Consider using regular expressions

import re
a = r'^(\bthe\b)'
sts  = ['the incredibles', 'theodore', 'at the mueseum', 'their words' ]
for i in sts:
    b = re.sub(a,'', i)
    print(b)

The regular expression I am using seems to work, but you might want to test more examples, using this link https://regex101.com/r/pX5sD5/3

Answer 3

You could do this:

if lastInput.lower().startswith("the "): lastInput = lastInput[4:]

Using the startswith() method of strings, you can test for the first word directly (including the space that follows it). In order to support various capitalisation, turning the string to lowercase (using lower() ) allows you to only perform one test for any combinations of upper/lower case variants (eg "The ", "the ", "THE ").

I also noticed that you are not applying this exclusion logic to the userChoice variable which is where I would have expected this to be used rather than on the lastInput variable.