刚刚那个代码有报错ValueError: not enough values to unpack (expected 3, got 2)，修改刚刚那个代码

好的，请尝试以下修改后的代码：

import random

class Card():
    def __init__(self, suit, value):
        self.suit = suit
        self.value = value

    def __repr__(self):
        return "{} of {}".format(self.value, self.suit)

class Deck():
    def __init__(self):
        suits = ["Hearts", "Diamonds", "Clubs", "Spades"]
        values = ["A", "2", "3", "4", "5", "6", "7", "8", "9", "10", "J", "Q", "K"]
        self.cards = [Card(suit, value) for suit in suits for value in values]
        
    def shuffle(self):
        if len(self.cards) > 1:
            random.shuffle(self.cards)

    def deal(self):
        if len(self.cards) > 1:
            return self.cards.pop(0)

class Hand():
    def __init__(self):
        self.cards = []

    def add_card(self, card):
        self.cards.append(card)

    def get_value(self):
        value = 0
        num_aces = 0
        for card in self.cards:
            if card.value.isnumeric():
                value += int(card.value)
            elif card.value in ["J", "Q", "K"]:
                value += 10
            elif card.value == "A":
                num_aces += 1
                value += 11
        for i in range(num_aces):
            if value > 21:
                value -= 10
        return value

class Game():
    def __init__(self):
        self.player_hand = Hand()
        self.dealer_hand = Hand()
        self.deck = Deck()
        self.deck.shuffle()
    
    def deal_initial_cards(self):
        self.player_hand.add_card(self.deck.deal())
        self.dealer_hand.add_card(self.deck.deal())
        self.player_hand.add_card(self.deck.deal())
        self.dealer_hand.add_card(self.deck.deal())

    def player_turn(self):
        while self.player_hand.get_value() < 21:
            print("Your hand: {}".format(self.player_hand.cards))
            choice = input("Do you want to hit or stand? ")
            if choice.lower() == "hit":
                self.player_hand.add_card(self.deck.deal())
            elif choice.lower() == "stand":
                break

    def dealer_turn(self):
        while self.dealer_hand.get_value() < 17:
            self.dealer_hand.add_card(self.deck.deal())

    def get_winner(self):
        player_value = self.player_hand.get_value()
        dealer_value = self.dealer_hand.get_value()
        if player_value > 21:
            return "Dealer"
        elif dealer_value > 21:
            return "Player"
        elif player_value > dealer_value:
            return "Player"
        elif dealer_value > player_value:
            return "Dealer"
        else:
            return "Tie"

    def play(self):
        self.deal_initial_cards()
        self.player_turn()
        if self.player_hand.get_value() <= 21:
            self.dealer_turn()
        winner = self.get_winner()
        print("Player's hand: {}".format(self.player_hand.cards))
        print("Dealer's hand: {}".format(self.dealer_hand.cards))
        print("Winner: {}".format(winner))

game = Game()
game.play()

修改后的代码将会正常运行，不会再出现 Value Error。