石头剪刀布游戏不起作用

debugcn 发表于 Dev

詹姆斯·拉蒂默

我写了一个剧本，让我玩剪刀石头布。我无法上课。为什么？

import random
player_choice = input("Choose rock paper or scissors")
class rock_paper_scissors:
    def __init__(self, player_choice, moves, ai_choice):
        self.player_choice
        self.moves = ["rock", "paper", "scissors"]
        ai_choice = random.choice(moves)
    for player_choice in rock_paper_scissors:
        if player_choice == "rock" and ai_choice == "scissors":
            print("You win Rock beat's scissors")
        elif ai_choice == "paper":
            print("You lose! Paper beats Rock")
        if player_choice == "paper" and ai_choice == "rock":
            print("You win! Paper beats rock!")
        elif ai_choice == "Scissors":
            print("You lose! Scissors beats paper!")
        if player_choice == scissors and ai_choice == paper:
            print("You win")
        elif ai_choice == rock:
            print("You lose! Rocky beats paper!")
        if player_choice == ai_choice:
            print("You tied!")
        if player_choice == scissors and ai_choice == paper:
            print("You win")
        elif ai_choice == rock:
            print("You lose! Rocky beats paper!")
        if player_choice == ai_choice:
            print("You tied!")

错误：

NameError：名称'rock_paper_scissors'在main.py的第8行上未定义

阿克沙特·马哈詹（Akshat mahajan）

我认为，解释需要解决的问题会更有用。

self.player_choice 未定义；
您将传递ai_choice给构造函数，然后在内部显式覆盖其值；
moves无论如何，如果要在内部定义构造函数，则无需传递给构造函数。
您不能进行for循环，rock_paper_scissors因为您还没有告诉Python如何迭代一个类。
您的缩进不正确；
您选择在任意点elif处使用if，这会造成混淆；
其中一些scissors，rock，paper被称为变量，而不是用引号括起来，使一个字符串。这些参考文献均未定义。

这是应该使用更好的样式进行修复的方法：

import random

class Game(object): # it's considered good practice to inherit from `object`

    # this is a constructor where we declare all instance variables
    def __init__(self):

        # create a dictionary of what defeats what; accessible in all member
        # functions - I deliberately chose to do this to reduce the number
        # of if statements in your code and improve readability.

        self.victory_map = {"rock":"scissors", "paper":"rock", "scissors":"paper"}

    # a method to play only a single round
    def play(self):

        # Here I ask player's input, and make a random choice from only our
        # victory_map's keys

        player_choice = input("Type 'rock', 'paper' or 'scissors' exactly")
        ai_choice = random.choice(self.victory_map.keys())

        # handle case where user types in something not in self.moves
        while player_choice not in self.victory_map:
              print("Type one of 'rock', 'paper' or 'scissors' EXACTLY as written!")
              player_choice = input("Type 'rock', 'paper' or 'scissors'")

        # This block takes care of the actual victory logic
        if self.victory_map[player_choice] == ai_choice:
             print("You win!")
        elif self.victory_map[ai_choice] == player_choice: 
             print("You lose")
        else:
             print("It's a draw.")

if __name__ == '__main__':
    new_game = Game()
    while True:
        # infinite loop, causes you to play indefinitely
        new_game.play()

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