Python猜测游戏即使玩家获得答案，也会打印正确的答案

Question

所以我最近开始编程python，并且我有这个代码的一个问题。当玩家在使用所有生命后得到的答案不正确时，应该打印出答案，但只有在第一次播放图层时他们再次播放，如果发现错误，他们不会得到正确答案。当玩家得到正确的答案时，它也会这样做。另外，当您使用再次播放功能时，电脑选择的号码保持不变。请尽量帮助我，但要记住我的理解手杖在Python的某些方面非常有限。我收录了很多评论来帮助别人了解正在发生的事情。我已经包含了我的代码以及我在shell中获得的内容。

代码：

#imports required modules 
import random 
from time import sleep 

#correct number variable created 
num = 0 
#generates number at random 
comp_num = random.randint(1,10) 
print('I\'m thinking of a number guess what it is...\n') 

#main game code 
def main(): 
    #lives created 
    lives = 3 
    #correct number variable reset 
    num = 0 
    while lives >= 1: 
     #player guesses 
     guess = int(input('Guess: ')) 
     if comp_num == guess: 
      #if correct says well done 
      input('\nWell Done! You guessed Correctly!\n') 
      #player doesn't get told what the number is if there right 
      num = num +1 
      break 
     elif comp_num >= guess: 
      #if guess is too low tells player 
      #one live taken for incorrect guess 
      lives = lives -1 
      print('\nToo low!\n') 
      #player is told how many lives they have left 
      print('You guessed incorrectly. You have',lives,'live(s) remaining.\n') 
     elif comp_num <= guess: 
      #if guess is too high tells player 
      #one live taken for incorrect guess 
      lives = lives -1 
      print('\nToo high!\n') 
      #player is told how many lives they have left 
      print('You guessed incorrectly. You have',lives,'live(s) remaining.\n') 

def end(): 
    #asks player if they want to play again 
    play_again = input('Would you like to play again?[Y/N] ') 
    while play_again.lower() == 'y': 
     #if they do game resets and plays again 
     if play_again.lower() == 'y': 
      comp_num = random.randint(1,10) 
      print('\nI\'m thinking of a number guess what it is...\n') 
      main() 
      play_again = input('Would you like to play again?[Y/N] ') 
      if play_again.lower() == 'n': 
       break 
    if play_again.lower() == 'n': 
     #if they don't game ends 
     input('\nOk, Press enter to exit') 
     exit() 

main() 

if num != 1: 
     #if player guesses incorrectly they get told the correct awnser 
     print('The number I was thinking of was...',comp_num,'!\n') 

end() 

SHELL：

I'm thinking of a number guess what it is... 

Guess: 5 

Well Done! You guessed Correctly! 

The number I was thinking of was... 5 ! 

Would you like to play again?[Y/N] y 

I'm thinking of a number guess what it is... 

Guess: 5 

Well Done! You guessed Correctly! 

Would you like to play again?[Y/N] y 

I'm thinking of a number guess what it is... 

Guess: 5 

Well Done! You guessed Correctly! 

Would you like to play again?[Y/N] y 

I'm thinking of a number guess what it is... 

Guess: 5 

Well Done! You guessed Correctly! 

Answer 1

与功能的问题是，你有一个名为num一个全局变量，但你main功能也有一个名为num的局部变量。 main中的num += 1行只改变局部变量。但if num != 1在最后检查全局变量。

为了解决这个问题，添加一个全局声明：

def main(): 
    global num 
    # the rest of your code 

---

为什么这项工作？

在Python，你写一个函数赋值语句（如num = 0或num += 1）的任何时间，创建一个局部变量，除非你明确告诉它不要，具有global声明。*所以，并称global num表示现在没有本地变量num，所以num += 1反而影响全局。

这在教程部分Defining Functions中有更详细的解释。

_{*或nonlocal声明，但您不想了解这一点。}

---

但是，有一个更好的方法来解决这个问题。而不是使用全局变量，您可以return本地变量中的值。像这样：

def main(): 
    # your existing code 
    return num 

# your other functions 

score = main() 
if score != 1: 
    #if player guesses incorrectly they get told the correct awnser 
    print('The number I was thinking of was...',comp_num,'!\n') 

Answer 2

你可以试试这个代码。我做到了一所学校分配

import random 
print "Welcome to guess my number!" 

number = random.randint(1,100) 

count = 1 
while count <= 5: 
    guess = int(raw_input("Guess an integer between 1 and 100 (inclusive): ")) 
    if guess == number: 
     print "Correct! You won in",count,"guesses!" 
     break 
    if guess > number: 
     print "Lower!" 
    else: 
     print "Higher!" 
    count += 1 

if count == 6: 
    print "Man, you really suck at this game. The number was", number 

Answer 3

好吧，让我的朋友看着我的代码，我们一起解决了它。我们已经确定这两个数字保持不变，并通过这样做被告知正确的答案。

#imports required modules 
import random 

#correct number variable created 
num = 0 

#generates number at random 
comp_num = random.randint(1,10) 

print('I\'m thinking of a number guess what it is...\n') 

#main game code 
def main(): 
    #generates number at random 
    comp_num = random.randint(1,10) 
    #set num as a global variable 
    global num 
    #lives created 
    lives = 3 
    while lives >= 1: 
     #player guesses 
     guess = int(input('Guess: ')) 
     if comp_num == guess: 
      #if correct says well done 
      print('\nWell Done! You guessed Correctly!\n') 
      break 
     elif comp_num >= guess: 
      #if guess is too low tells player 
      #one live taken for incorrect guess 
      lives = lives -1 
      print('\nToo low!\n') 
      #player is told how many lives they have left 
      print('You guessed incorrectly. You have',lives,'live(s) remaining.\n') 
      if lives == 0: 
        #if player guesses incorrectly they get told the correct awnser 
        print('The number I was thinking of was...',comp_num,'!\n') 
     elif comp_num <= guess: 
      #if guess is too high tells player 
      #one live taken for incorrect guess 
      lives = lives -1 
      print('\nToo high!\n') 
      #player is told how many lives they have left 
      print('You guessed incorrectly. You have',lives,'live(s) remaining.\n') 
      if lives == 0: 
        #if player guesses incorrectly they get told the correct awnser 
        print('The number I was thinking of was...',comp_num,'!\n') 

def end(): 
    #asks player if they want to play again 
    play_again = input('Would you like to play again?[Y/N] ') 
    while play_again.lower() == 'y': 
     #if they do game resets and plays again 
     if play_again.lower() == 'y': 
      comp_num = random.randint(1,10) 
      print('\nI\'m thinking of a number guess what it is...\n') 
      main() 
      play_again = input('Would you like to play again?[Y/N] ') 
      if play_again.lower() == 'n': 
       break 
    if play_again.lower() == 'n': 
     #if they don't game ends 
     input('Ok, Press enter to exit') 
     exit() 

#calls main section of game 
main() 


#calls end of game to give option of playing again and reseting game 
end() 

我想感谢所有帮助过我的人，我仍然无法在代码中看到问题，更不用说修复它了。出于这个原因，当我发现错误时，我会将@abarnert的答案标记为已接受的答案。