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python - 无法在python中动态更改变量（分数）

问题描述

我的程序目标：一个骰子游戏，每次玩家准备好时掷两次骰子。如果两个数字相等，玩家得到+5分。否则，-1 分。我的麻烦：我的程序不能改变分数。它最初设置为 0。但每次它只有-1或+5。它必须不断减少或增加。我也尝试了全局变量。这是我的代码：

from random import randint
    
    
# this function returns two random numbers in list as dice result.
def roll_dice():
    dice1 = randint(1, 7)
    dice2 = randint(1, 7)
    rolled_dice = [dice1, dice2]
    return rolled_dice
    
    
# game function is all the game, if player is ready.
def game():
    score = 0
    rolled_dice = roll_dice()
    print(rolled_dice)
    if rolled_dice[0] != rolled_dice[1]:
        score -= 1
    elif rolled_dice[0] == rolled_dice[1]:
        score += 5
    print(f"score is {score}")
#also my code in pycharms, not asking if I want to continue game. but ignore it I it bothers you, I can figure it out.
    #help here also if you can.. :)

    conti = input("continue?")
    if conti == 'y':
        game()
    else:
        quit()
    
    
# this is the whole program.
def main():
    ready = input("ready? (y/n)")
    if ready == 'y':
        game()
    elif ready == 'n':
        quit()
    else:
        print("type only y/n")
    
main()

我很感激任何帮助。

标签： pythonfunctionvariablesglobal-variablesargs

解决方案

重置发生是因为每次用户键入y以继续游戏时，您都会继续调用game()函数。您可以将game()函数更改为循环，这将解决您的问题：

def game():
    score = 0
    while True:
        rolled_dice = roll_dice()
        print(rolled_dice)
        if rolled_dice[0] != rolled_dice[1]:
            score -= 1
        else: # you can change here to else, because being equals is the complement of the first if clause
            score += 5
        print(f"score is {score}")

        conti = input("continue?")
        if conti == 'n':
            break

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