提出問題后如何在代碼中添加一定數量的嘗試？

Question

我有一個代碼可以選擇歌手的隨機歌曲，但是只顯示首字母，並且用戶必須猜測給定歌手的歌曲名稱，我需要添加2次嘗試，如果他們弄錯了，我會結束代碼，但是如果他們做對了，他們將繼續下一個問題。

f1 = open("Eminem.txt", "r")            #Opens external notepad file and the read mode ("r")
f2 = open("UnlikePluto.txt", "r")        #Opens external notepad file and the read mode ("r")
f3 = open("Marshmello.txt", "r")        #Opens external notepad file and the read mode ("r")
f4 = open("Eminem1.txt", "r")            #Opens external notepad file and the read mode ("r")
f5 = open("UnlikePluto1.txt", "r")        #Opens external notepad file and the read mode ("r")
f6 = open("Marshmello1.txt", "r")        #Opens external notepad file and the read mode ("r")
f7 = open("Eminem2.txt", "r")            #Opens external notepad file and the read mode ("r")
f8 = open("UnlikePluto2.txt", "r")        #Opens external notepad file and the read mode ("r")
f9 = open("Marshmello2.txt", "r")        #Opens external notepad file and the read mode ("r")

我已經在外部文件中保存了歌手姓名，歌曲名稱和實際問題，但我不知道如何通過2次嘗試猜出歌曲來編碼問題。 感謝：D

Answer 1

您可以使用變量來計算嘗試次數。 並將其添加到while循環中。 像這樣的東西：

count = 0
while count<2:
    answer = input('enter the song name: ')
    if answer == solution:
        <move on to next question>
    else:
        count +=1

Answer 2

我已經編寫了一個獨立的代碼，在該代碼中，如果知道藝術家，並且所選擇的歌曲是已知的，則將嘗試3次，並相應地顯示對還是錯的答案。 您可以根據需要擴展它！

def choose_song(artist, songs, song_choosen):

    idx = 0
    guess_correct = False
    song = ''

    while idx < 3:

        guess = input('The artists is {} and the song is {}. Enter your guess {}>>'.format(artist, song_choosen[:3], idx+1))

        #Iterate through all songs to check if the guess is right, if it is, break out of for loop
        for song in songs:
            if guess.lower().strip() == song.lower().strip():
                guess_correct = True
                song = guess
                break
        #If the user guessed correctly, we are done else try again
        if guess_correct:
            break
        else:
            idx+= 1

    #Show the final output accordingly
    if guess_correct:
        print('You guessed correctly. The song is indeed {}'.format(song))
    else:
        print('You guessed wrong. The song is {}'.format(song_choosen))


choose_song('Eminem', ['Rap God', 'Slim Shady'], 'Rap God')

輸出將是

The artists is Eminem and the song is Rap. Enter your guess 1>>Rap King
The artists is Eminem and the song is Rap. Enter your guess 2>>Rap Dog
The artists is Eminem and the song is Rap. Enter your guess 3>>Rap Kid
You guessed wrong. The song is Rap God

The artists is Eminem and the song is Rap. Enter your guess 1>>Rap God
You guessed correctly. The song is indeed Rap God

The artists is Eminem and the song is Rap. Enter your guess 1>>Rap Dog
The artists is Eminem and the song is Rap. Enter your guess 2>>rap god
You guessed correctly. The song is indeed rap god

要以此為基礎，您可以執行此操作。

import random

#Your dictionary of artists to songs list
dct = {'Eminem': ['Rap God', 'Slim Shady'],
       'Marshmello': ['Happier', 'Friends'],
       'Pearl Jam': ['Even Flow', 'Black']}

import random
#Iterate through all artists and pick a song at random
for key, value in dct.items():
    choose_song(key, value, random.choice(value))

輸出可能看起來像。

The artists is Eminem and the song is Rap. Enter your guess 1>>rap god
You guessed correctly. The song is indeed rap god
The artists is Marshmello and the song is Hap. Enter your guess 1>>Happier
You guessed correctly. The song is indeed Happier
The artists is Pearl Jam and the song is Bla. Enter your guess 1>>Black
You guessed correctly. The song is indeed Black