Python猜測遊戲即使玩家獲得答案，也會打印正確的答案

Question

所以我最近開始編程python，並且我有這個代碼的一個問題。當玩家在使用所有生命後得到的答案不正確時，應該打印出答案，但只有在第一次播放圖層時他們再次播放，如果發現錯誤，他們不會得到正確答案。當玩家得到正確的答案時，它也會這樣做。另外，當您使用再次播放功能時，電腦選擇的號碼保持不變。請儘量幫助我，但要記住我的理解手杖在Python的某些方面非常有限。我收錄了很多評論來幫助別人瞭解正在發生的事情。我已經包含了我的代碼以及我在shell中獲得的內容。

代碼：

#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

與功能的問題是，你有一個名爲num一個全局變量，但你main功能也有一個名爲num的局部變量。 main中的num += 1行只改變局部變量。但if num != 1在最後檢查全局變量。

爲了解決這個問題，添加一個全局聲明：

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

---

爲什麼這項工作？

在Python，你寫一個函數賦值語句（如num = 0或num += 1）的任何時間，創建一個局部變量，除非你明確告訴它不要，具有global聲明。*所以，並稱global num表示現在沒有本地變量num，所以num += 1反而影響全局。

這在教程部分Defining Functions中有更詳細的解釋。

_{*或nonlocal聲明，但您不想了解這一點。}

---

但是，有一個更好的方法來解決這個問題。而不是使用全局變量，您可以return本地變量中的值。像這樣：

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

你可以試試這個代碼。我做到了一所學校分配

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，讓我的朋友看着我的代碼，我們一起解決了它。我們已經確定這兩個數字保持不變，並通過這樣做被告知正確的答案。

#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() 

我想感謝所有幫助過我的人，我仍然無法在代碼中看到問題，更不用說修復它了。出於這個原因，當我發現錯誤時，我會將@abarnert的答案標記爲已接受的答案。