Question

我正在努力用Python结束我的程序，我只想输入q或quit来完成程序。这是我的代码

# This is a guess the number game
import random

guessesTaken = 0

print('Hello! What is your name?')
myName = input()

number = random.randint(1, 20)
print('Well, ' + myName + ', I am thinking of a number between 1 and 20, can     you guess it?')

while guessesTaken < 6:
    print('Take a guess!')
    guess = input()
    guess = int(guess)

    guessesTaken = guessesTaken + 1

    if guess < number:
       print('Your guess is too low')

    if guess > number:
       print('Your guess is too high')

    if guess == number:
       break

if guess == number:
    guessesTaken = str(guessesTaken)
    print('Good job ' + myName + '!You guessed my number in ' + guessesTaken + '  guesses!')

    if guess  != number:
       number = str(number)
       print('Nope. The number I was thinking of was ' + number)

       print('Game Over')
       choice = input('Press Q to Quit')
       if choice == 'q' :
       sys.exit()

请告诉我哪里出错了？

Answer 1

据我所知，你有两个错误。

首先，您需要导入sys sys.exit()模块才能正常工作。

其次，你的缩进在两个地方是不正确的。这是正确的代码。评论显示缩进不正确的地方：

# This is a guess the number game
import random
import sys

guessesTaken = 0

print('Hello! What is your name?')
myName = input()

number = random.randint(1, 20)
print('Well, ' + myName + ', I am thinking of a number between 1 and 20, can     you guess it?')

while guessesTaken < 6:
    print('Take a guess!')
    guess = input()
    guess = int(guess)

    guessesTaken = guessesTaken + 1

    if guess < number:
       print('Your guess is too low')

    if guess > number:
       print('Your guess is too high')

    if guess == number:
       break

if guess == number:
    guessesTaken = str(guessesTaken)
    print('Good job ' + myName + '!You guessed my number in ' + guessesTaken + '  guesses!')

if guess  != number:  #indentation was off here
   number = str(number)
   print('Nope. The number I was thinking of was ' + number)

print('Game Over')  #and here
choice = input('Press Q to Quit')
if choice == 'q' :
    sys.exit()  # and here

Answer 2

正如@MarkyPython所说，你有一些缩进错误，如果你想使用exit，你需要导入sys。请注意，鉴于您拥有的代码，使用<script src="https://code.jquery.com/jquery-1.10.2.js"></script> <script src="https://code.jquery.com/ui/1.11.4/jquery-ui.js"></script> <div class="container"> <table class="responsive-table"> <caption>Top 10 Grossing Animated Films of All Time</caption> <thead> <tr> <th scope="col">Film Title</th> <th scope="col">Released</th> <th scope="col">Studio</th> <th scope="col">Worldwide Gross</th> <th scope="col">Domestic Gross</th> <th scope="col">Foreign Gross</th> <th scope="col">Budget</th> </tr> </thead> <tfoot> <tr> <td colspan="7">Sources: <a href="http://en.wikipedia.org/wiki/List_of_highest-grossing_animated_films" rel="external">Wikipedia</a> & <a href="http://www.boxofficemojo.com/genres/chart/?id=animation.htm" rel="external">Box Office Mojo</a>. Data is current as of September 1, 2015.</td> </tr> </tfoot> <tbody> <tr> <th scope="row">Frozen</th> <td data-title="Released">2013</td> <td data-title="Studio">Disney</td> <td data-title="Worldwide Gross" data-type="currency">$1,279,852,693</td> <td data-title="Domestic Gross" data-type="currency">$400,738,009 </td> <td data-title="Foreign Gross" data-type="currency">$873,481,000</td> <td data-title="Budget" data-type="currency"><div id="datepicker1"> </div></td> </tr> <tr> <th scope="row">Toy Story 3</th> <td data-title="Released">2010</td> <td data-title="Studio">Disney Pixar</td> <td data-title="Worldwide Gross" data-type="currency">$1,063,171,911</td> <td data-title="Domestic Gross" data-type="currency">$415,004,880</td> <td data-title="Foreign Gross" data-type="currency">$648,167,031</td> <td data-title="Budget" data-type="currency">$200,000,000</td> </tr> <tr> <th scope="row">Minions</th> <td data-title="Released">2015</td> <td data-title="Studio">Universal</td> <td data-title="Worldwide Gross" data-type="currency">$1,018,901,000</td> <td data-title="Domestic Gross" data-type="currency">$324,755,670</td> <td data-title="Foreign Gross" data-type="currency">$694,100,000 </td> <td data-title="Budget" data-type="currency">$74,000,000</td> </tr> <tr> <th scope="row">The Lion King</th> <td data-title="Released">1994</td> <td data-title="Studio">Disney</td> <td data-title="Worldwide Gross" data-type="currency">$987,483,777</td> <td data-title="Domestic Gross" data-type="currency">$422,783,777</td> <td data-title="Foreign Gross" data-type="currency">$564,700,000</td> <td data-title="Budget" data-type="currency">$45,000,000</td> </tr> <tr> <th scope="row">Despicable Me 2</th> <td data-title="Released">2013</td> <td data-title="Studio">Universal</td> <td data-title="Worldwide Gross" data-type="currency">$970,761,885</td> <td data-title="Domestic Gross" data-type="currency">$368,061,265</td> <td data-title="Foreign Gross" data-type="currency">$602,700,620</td> <td data-title="Budget" data-type="currency">$76,000,000</td> </tr> <tr> <th scope="row">Finding Nemo</th> <td data-title="Released">2003</td> <td data-title="Studio">Pixar</td> <td data-title="Worldwide Gross" data-type="currency">$936,743,261</td> <td data-title="Domestic Gross" data-type="currency">$380,843,261</td> <td data-title="Foreign Gross" data-type="currency">$555,900,000</td> <td data-title="Budget" data-type="currency">$94,000,000</td> </tr> <tr> <th scope="row">Shrek 2</th> <td data-title="Released">2004</td> <td data-title="Studio">Dreamworks</td> <td data-title="Worldwide Gross" data-type="currency">$919,838,758</td> <td data-title="Domestic Gross" data-type="currency">$441,226,247</td> <td data-title="Foreign Gross" data-type="currency">$478,612,511</td> <td data-title="Budget" data-type="currency">$150,000,000</td> </tr> <tr> <th scope="row">Ice Age: Dawn of the Dinosaurs</th> <td data-title="Released">2009</td> <td data-title="Studio">Fox</td> <td data-title="Worldwide Gross" data-type="currency">$886,686,817</td> <td data-title="Domestic Gross" data-type="currency">$196,573,705</td> <td data-title="Foreign Gross" data-type="currency">$690,113,112 </td> <td data-title="Budget" data-type="currency">$90,000,000</td> </tr> <tr> <th scope="row">Ice Age: Continental Drift</th> <td data-title="Released">2012</td> <td data-title="Studio">Fox</td> <td data-title="Worldwide Gross" data-type="currency">$877,244,782</td> <td data-title="Domestic Gross" data-type="currency">$161,321,843</td> <td data-title="Foreign Gross" data-type="currency">$715,922,939</td> <td data-title="Budget" data-type="currency">$95,000,000</td> </tr> <tr> <th scope="row">Shrek the Third</th> <td data-title="Released">2007</td> <td data-title="Studio">Dreamworks</td> <td data-title="Worldwide Gross" data-type="currency">$798,958,162</td> <td data-title="Domestic Gross" data-type="currency">$322,719,944</td> <td data-title="Foreign Gross" data-type="currency">$476,238,218</td> <td data-title="Budget" data-type="currency">$160,000,000</td> </tr> </tbody> </table> </div>实际上是不好的做法。我建议您使用sys.exit()。这将退出你的while循环。因为之后你没有代码，你的程序将会慷慨退出。

如果稍后添加更多代码，您可能希望将代码放在函数中。此时，使用break将是最佳选择。

使用return或break是更好的做法，因为它可以让以后更轻松地为您的程序添加功能，并使您的代码流更好（不会突然退出'跳'）。

return

用Python结束程序

2 个答案: