有人知道我為什么要得到“退出代碼為0的進程完成”嗎？

Question

我正在嘗試運行該程序，但是由於某種原因，每當我輸入0時，程序就會停止運行。 我希望輸入的數據少於生成的隨機數，因此您會認為“您猜得太低，請重試”。 誰能幫助和解釋？ 另外，請隨時批評我的代碼，以便我可以做得更好。 非常感激。

# Generate random number for player to guess.
import random

number = random.randint(1, 3)
print(number)

# Ask player's name and have player guess the number.
welcomeUser = input("Hi, welcome to 'Guess a Number!'. Please tell us your name ")

userName = str(welcomeUser)
userGuess = int((input("Guess a number from 1 - 3 ")))

# Cycle through player's guesses until player enters correct number.
while userGuess:
    if userGuess > number:
        print("You've guess too high, please try again ")
        userGuess = int(input("Guess a number from 1 - 3 "))
        if userGuess == number:
            print("Congratulations! You've guessed correctly! ")
            break
    elif userGuess < number or userGuess == 0:
        print("You've guessed too low, please try again ")
        userGuess = int(input("Guess a number from 1 - 3 "))
        if userGuess == number:
            print("Congratulations! You've guessed correctly! ")
            break
    else:
        print("Congratulations " + userName + "! " + "You've guessed correctly! ")
        break

Answer 1

0為falsey，即在布爾表達式中其值為False 。 因此， while循環從

while userGuess:

如果userGuess為0將被跳過。 看起來您不需要檢查循環中的任何條件，因此將其更改為

while True:

應該足夠了。 順便說一句， Process finished with exit code 0僅表示程序已退出，沒有任何錯誤。

Answer 2

在python 0等於“ false”。 因此，當您輸入“ 0”時，userGuess變為false，而while循環終止。 更好地引入一個新變量：

continueProgram = True
while continueProgram :
    if userGuess > number:
        print("You've guess too high, please try again ")
        userGuess = int(input("Guess a number from 1 - 3 "))
        if userGuess == number:
            print("Congratulations! You've guessed correctly! ")
            continueProgram = False
    elif userGuess < number or userGuess == 0:
        print("You've guessed too low, please try again ")
        userGuess = int(input("Guess a number from 1 - 3 "))
        if userGuess == number:
            print("Congratulations! You've guessed correctly! ")
            continueProgram = False
    else:
        print("Congratulations " + userName + "! " + "You've guessed correctly! ")
        continueProgram = False