任何人都知道为什么我得到 "Process finished with exit code 0"？

Question

我正在尝试运行这个程序，但出于某种原因，每当我输入 0 时，程序都会停止运行ning。我希望 "You've guessed too low, please try again " 因为输入小于生成的随机数。任何人都可以帮助和解释吗？另外，请随时批评我的代码，以便我改进它。非常感谢。

# 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 是错误的，即它在布尔表达式中的计算结果为 False。因此，以

开头的while循环

while userGuess:

如果 userGuess 为 0，将跳过

。看起来您不需要检查循环中的任何条件，因此将其更改为

while True:

应该够了。顺便说一句，Process finished with exit code 0 只是意味着程序退出没有任何错误。

Answer 2

在 python 0 等于 "false"。因此，当您输入“0”时，userGuess 变为假并且 while 循环终止。最好引入一个新变量：

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

任何人都知道为什么我得到 "Process finished with exit code 0"？

Anyone know why I'm getting a "Process finished with exit code 0"?

python

truthiness