Python新手 – 摇滚,纸,剪刀

发布时间：2020-12-20 11:54:15 所属栏目：Python 来源：网络整理

导读：我是 Python的新手,并决定为自己设置一个Rock,Paper,Scissors游戏编程的挑战而不复制别人的代码.但是,我需要Pythonista成年人的帮助！我在Rock,Scissors上看过很多其他的变化,但没有什么可以解释为什么我的版本不起作用.我的程序基本上遵循这种格式：在开始

我是 Python的新手,并决定为自己设置一个Rock,Paper,Scissors游戏编程的挑战而不复制别人的代码.但是,我需要Pythonista成年人的帮助！

我在Rock,Scissors上看过很多其他的变化,但没有什么可以解释为什么我的版本不起作用.我的程序基本上遵循这种格式：在开始时设置空变量,定义打印介绍文本的4个函数,接收玩家输入,随机选择计算机的选择,然后评估玩家是赢还是输.

然后,一旦玩家选择他们不想再玩,就会陷入一个中断循环. (这位工作正常)

但是,每当我运行代码时,它总是给出一个绘图,并且似乎不存储计算机选择函数调用的任何数据.有人知道我做错了什么吗？

非常感谢！

import random

playerAnswer = ''
computerAnswer = ''
winsTotal = 0
timesPlayed = 0

def showIntroText():
    print('Time to play Rock,Scissors.')
    print('Type in your choice below:')

def playerChoose():
    playerInput = input()
    return

def computerChoose():
    randomNumber = random.randint(1,3)
    if randomNumber == 1:
        computerPick = 'Paper'
    elif randomNumber == 2:
        computerPick = 'Scissors'
    else:
        computerPick = 'Rock'
    return

def assessResult():
    if playerAnswer == computerAnswer:
        print('Draw!')
    elif playerAnswer == 'Rock' and computerAnswer == 'Paper':
        print('Paper beats Rock. You lose!')
    elif playerAnswer == 'Paper' and computerAnswer == 'Scissors':
        print('Scissors cuts Paper. You lose!')
    elif playerAnswer == 'Scissors' and computerAnswer == 'Rock':
        print('Rock blunts Scissors. You lose!')
    else:
        print('You win!')
        winsTotal += 1
    return

while True:
    timesPlayed += 1

    showIntroText()

    playerAnswer = playerChoose()
    computerAnswer = computerChoose()

    assessResult()

    print('Do you want to play again? (y/n)')
    playAgain = input()
    if playAgain == 'n':
        break

print('Thank you for playing! You played ' + str(timesPlayed) + ' games.')

解决方法

在大多数情况下,您错过了返回值.

**在playerChoose()中添加’return playerInput’而不是仅返回.

**在computerChoose()中添加’return computerPick’而不是return.

**在evaluateResult()中将winsTotal变量用作’winsTotal = 0’之前初始化winsTotal变量.

**在程序开始时初始化的变量超出了函数范围.

请查看此StackOverFlow link以了解python中的变量范围.

**在assessmentResult()中添加’return winsTotal’而不是return.

import random

def showIntroText():
    print('Time to play Rock,Scissors.')
    print('Type in your choice below:')

def playerChoose():
    playerInput = input()
    return playerInput

def computerChoose():
    randomNumber = random.randint(1,3)
    if randomNumber == 1:
        computerPick = 'Paper'
    elif randomNumber == 2:
        computerPick = 'Scissors'
    else:
        computerPick = 'Rock'
    return computerPick

def assessResult(winsTotal):
    if playerAnswer == computerAnswer:
        print('Draw!')
    elif playerAnswer == 'Rock' and computerAnswer == 'Paper':
        print('Paper beats Rock. You lose!')
    elif playerAnswer == 'Paper' and computerAnswer == 'Scissors':
        print('Scissors cuts Paper. You lose!')
    elif playerAnswer == 'Scissors' and computerAnswer == 'Rock':
        print('Rock blunts Scissors. You lose!')
    else:
        print('You win!')
        winsTotal += 1
    return winsTotal


total_win = 0
while True:

    timesPlayed += 1

    showIntroText()

    playerAnswer = playerChoose()
    computerAnswer = computerChoose()

    total_win = assessResult(total_win)

    print('Do you want to play again? (y/n)')
    playAgain = input()
    if playAgain == 'n':
        break

print('Thank you for playing! You played ' + str(timesPlayed) + ' games.' + 'Out of which you won '+ str(total_win))

输出：

C:Usersdinesh_pundkarDesktop>python c.py
Time to play Rock,Scissors.
Type in your choice below:
"Rock"
You win!
Do you want to play again? (y/n)
"y"
Time to play Rock,Scissors.
Type in your choice below:
"Rock"
Draw!
Do you want to play again? (y/n)
"y"
Time to play Rock,Scissors.
Type in your choice below:
"Rock"
Paper beats Rock. You lose!
Do you want to play again? (y/n)
"y"
Time to play Rock,Scissors.
Type in your choice below:
"Rock"
Paper beats Rock. You lose!
Do you want to play again? (y/n)
"n"
Thank you for playing! You played 4 games.Out of which you won 1

（编辑：李大同）

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