Question

我正在用python开发石头剪刀布，但被卡住了。我做了一个在（石头，剪刀和剪刀）之间循环的课程，我希望计算机知道它是先前的游戏。例如（第一轮电脑玩石头，下一轮电脑应该玩纸）
但我不知道如何调用学习功能使其工作

class Player:
def __init__(self):
    self.score = 0

def move(self):
    return 'rock'

def learn(self, my_move, their_move):
    self.my_move = my_move
    self.their_move = their_move

def beats(one, two):
return ((one == 'rock' and two == 'scissors') or
        (one == 'scissors' and two == 'paper') or
        (one == 'paper' and two == 'rock'))

class Game:
def __init__(self, p1, p2):
    self.p1 = p1
    self.p2 = p2

def play_round(self):
    move1 = input("Pick something!\n")
    move2 = self.p2.move()
    print(f"Player 1: {move1}  Player 2: {move2}")
    self.p1.learn(move1, move2)
    self.p2.learn(move2, move1)
    if beats(move1, move2):
        self.p1.score += 1
        print ("You win")
        print ("Human score = " + str(self.p1.score) + " "  + "Computer score = " + str(self.p2.score) ) 
    elif beats(move2,move1):
        self.p2.score += 1
        print ("Computer wins")
        print ("Human score = " + str(self.p1.score) + " "  + "Computer score = " + str(self.p2.score) ) 
    else:
        print ("Draw")
        print ("Human score = " + str(self.p1.score) + " "  + "Computer score = " + str(self.p2.score) )

def play_game(self):
    print("Game start!")
    for round in range(3):
        print(f"Round {round}:")
        self.play_round()
    print("Game over!")

class human_player(Player):
def move(self):
   return input("Pick something!\n")

class randomplayer(Player):
def move(self):
    return random.choice(moves)

class repeat(Player):
def move(self):
    return 'rock'

class cycleplayer(Player):
def move(self):
    # calling my_move from the Player class
    if self.learn.my_move == "rock" or "paper" or "scissors" :
        return 'rock'

    elif  self.their_move == 'rock':
        return "paper"   

    elif self.their_move == 'paper':
        return "scissors"  

    elif self.their_move == 'scissors':
        return "rock"

if HumanPlayer_choice == "cycle" :
game = Game(Player(), cycleplayer())
game.play_game()

这是我遇到的错误。

发生异常：AttributeError'function'对象没有属性“ my_move”

我知道我需要利用带有学习功能的init函数来使其工作，但是我不确定如何。

Answer 1

问题出在这条线上：

if self.learn.my_move == "rock" or "paper" or "scissors" :

learn函数没有名为my_move的属性。你的意思可能是

if self.my_move == "rock" or self.my_move == "paper" or self.my_move == "scissors" :

请注意，您必须在self.my_move ==和"paper"之前添加"scissors"；否则，其评估方式如下：

if (self.my_move == "rock") or ("paper") or ("scissors"):

并且由于非空字符串始终被评估为True，因此这种if情况变得毫无用处。

如@DmitryErohin所述，有一种更好的方法可以实现，而无需重复自己：

if (self.my_move in ("rock", "paper", "scissors")):

这不那么冗长，可读性更强

Answer 2

据我所知，您的代码中存在一些问题。请根据您的代码查看以下示例。我无法遵循某些逻辑，因此它可能无法完全按照您的要求运行。建议：

因为您只想存储cycle_player动作的前一动作，所以将其存储在Cycle对象（实例）中而不是Player上
随着move方法的变化，它的实现特定于子类（例如human_player，random_player，cycle_player）

某些方法比静态方法要好，而不是在每个实例方法中都重新创建

import random

class Player:
    def __init__(self):
        self.score = 0

class Game:
    def __init__(self, p1, p2):
        self.p1 = p1
        self.p2 = p2

    @staticmethod
    def check_result(a, b): #Return win, draw, loose for a over b
        if (a == b):
            return 'draw'
        if (a == 'rock' and b == 'scissors') or (a == 'scissors' and b == 'paper') or (a == 'paper' and b == 'rock'):
            return 'win'
        return 'loose'

    def play_round(self):
        #move1 = input("Pick something!\n")
        move1 = self.p1.move()
        move2 = self.p2.move()
        print(f"Player 1: {move1}  Player 2: {move2}")
        result = Game.check_result(move1, move2) # a over b
        if result == 'win':
            self.p1.score += 1
            print ("You win")
        elif result == 'loose':
            self.p2.score += 1
            print ("Computer wins")
        else:
            print ("Draw")
        print ("Human score = " + str(self.p1.score) + " "  + "Computer score = " + str(self.p2.score))

    def play_game(self):
        print("Game start!")
        for round in range(3):
            print(f"Round {round + 1}:")
            self.play_round()
        print("Game over!")

class human_player(Player):
    def move(self):
        return input("Pick something!\n") #TODO validate input

class random_player(Player): #Option in game for computer to make random moves
    def move(self):
        return random.choice(["scissors","paper","rock"])

class repeat_player(Player): #Option
    def move(self):
        return 'rock'

class cycle_player(Player):
    def __init__(self):
        self.previous_move = None
        super().__init__()

    def move(self):
        # calling my_move from the Player class
        if self.previous_move is None :
            next_move = 'rock'
        elif  self.previous_move == 'rock':
            next_move = "paper"
        elif self.previous_move == 'paper':
            next_move = "scissors"  
        elif self.previous_move == 'scissors':
            next_move = "rock"
        self.previous_move = next_move
        return next_move

#game = Game(human_player(), random_player())
#game = Game(human_player(), repeat_player())
game = Game(human_player(), cycle_player())
game.play_game()

Python无法调用函数

2 个答案: