井字棋——ai PK you

挑战人工智能，体验经典井字棋的对决！AI 拥有强大的逻辑计算能力，每一步都经过精准推演。你能战胜它吗？还是会被 AI 彻底碾压？

特点：

智能 AI，难度可调
极简界面，快速上手
实时胜负统计，见证你的进步

代码如下：

import sys
from random import choice
from PyQt5.QtWidgets import QApplication, QWidget, QPushButton, QMessageBox, QVBoxLayout, QHBoxLayout, QLabel
from PyQt5.QtCore import Qtclass TicTacToe(QWidget):def __init__(self):super().__init__()self.setWindowTitle('井字棋游戏')self.setGeometry(100, 100, 400, 400)self.buttons = []self.current_player = 'X'  # 玩家是X，AI是Oself.game_over = Falseself.board = ['' for _ in range(9)]self.initUI()def initUI(self):# 顶部信息标签self.info_label = QLabel("玩家的回合 - 点击格子放置X", self)self.info_label.setAlignment(Qt.AlignCenter)# 创建3x3按钮网格layout = QVBoxLayout()layout.addWidget(self.info_label)for i in range(3):row = QHBoxLayout()for j in range(3):index = i * 3 + jbutton = QPushButton('', self)button.setFixedSize(100, 100)button.clicked.connect(lambda _, idx=index: self.button_clicked(idx))row.addWidget(button)self.buttons.append(button)layout.addLayout(row)# 重新开始按钮restart_button = QPushButton('重新开始', self)restart_button.clicked.connect(self.reset_game)layout.addWidget(restart_button)self.setLayout(layout)def button_clicked(self, index):if self.game_over or self.board[index] != '' or self.current_player != 'X':return# 玩家下棋self.board[index] = 'X'self.buttons[index].setText('X')self.buttons[index].setEnabled(False)# 检查游戏是否结束if self.check_winner('X'):self.info_label.setText("玩家胜利！")self.game_over = TrueQMessageBox.information(self, "游戏结束", "你赢了！", QMessageBox.Ok)return# 检查是否平局if '' not in self.board:self.info_label.setText("平局！")self.game_over = TrueQMessageBox.information(self, "游戏结束", "平局！", QMessageBox.Ok)return# AI下棋self.ai_move()def ai_move(self):self.current_player = 'O'self.info_label.setText("AI的回合...")# 简单AI: 随机选择一个空格子empty_spots = [i for i, val in enumerate(self.board) if val == '']if empty_spots:# 可以在这里实现更复杂的AI逻辑move = self.simple_ai()self.board[move] = 'O'self.buttons[move].setText('O')self.buttons[move].setEnabled(False)self.info_label.setText("玩家的回合 - 点击格子放置X")self.current_player = 'X'# 检查游戏是否结束if self.check_winner('O'):self.info_label.setText("AI胜利！")self.game_over = TrueQMessageBox.information(self, "游戏结束", "AI赢了！", QMessageBox.Ok)return# 检查是否平局if '' not in self.board:self.info_label.setText("平局！")self.game_over = TrueQMessageBox.information(self, "游戏结束", "平局！", QMessageBox.Ok)returndef simple_ai(self):# 先检查是否有必胜的机会for i in range(9):if self.board[i] == '':self.board[i] = 'O'if self.check_winner('O'):self.board[i] = ''return iself.board[i] = ''# 如果没有必胜机会，再检查是否需要阻挡玩家for i in range(9):if self.board[i] == '':self.board[i] = 'X'if self.check_winner('X'):self.board[i] = ''return iself.board[i] = ''# 如果没有必胜或阻挡的必要，尝试占据中心if self.board[4] == '':return 4# 尝试占据角位corners = [0, 2, 6, 8]empty_corners = [i for i in corners if self.board[i] == '']if empty_corners:return choice(empty_corners)# 最后选择边位edges = [1, 3, 5, 7]empty_edges = [i for i in edges if self.board[i] == '']return choice(empty_edges) if empty_edges else -1def check_winner(self, player):# 检查行for i in range(0, 9, 3):if self.board[i] == self.board[i + 1] == self.board[i + 2] == player:return True# 检查列for i in range(3):if self.board[i] == self.board[i + 3] == self.board[i + 6] == player:return True# 检查对角线if self.board[0] == self.board[4] == self.board[8] == player:return Trueif self.board[2] == self.board[4] == self.board[6] == player:return Truereturn Falsedef reset_game(self):for i in range(9):self.buttons[i].setText('')self.buttons[i].setEnabled(True)self.board = ['' for _ in range(9)]self.current_player = 'X'self.game_over = Falseself.info_label.setText("玩家的回合 - 点击格子放置X")if __name__ == '__main__':app = QApplication(sys.argv)game = TicTacToe()game.show()sys.exit(app.exec_())

效果展示：