IDLE贪吃蛇游戏代码

以下是一个简单的贪吃蛇游戏代码示例，使用 Python 的 Tkinter 库实现游戏界面和交互：

import tkinter as tk
import random

class Snake:
    def __init__(self, size):
        self.size = size
        self.body = [(size // 2, size // 2)]
        self.direction = (0, 1)
    
    def move(self, food):
        head = self.body[-1]
        new_head = (head[0] + self.direction[0], head[1] + self.direction[1])
        if new_head == food:
            self.body.append(new_head)
            return True
        elif new_head in self.body or not (0 <= new_head[0] < self.size and 0 <= new_head[1] < self.size):
            return False
        else:
            self.body.append(new_head)
            self.body.pop(0)
            return True
    
    def change_direction(self, direction):
        if (direction[0] + self.direction[0], direction[1] + self.direction[1]) != (0, 0):
            self.direction = direction

class Game:
    def __init__(self, size):
        self.size = size
        self.snake = Snake(size)
        self.food = self.generate_food()
        self.root = tk.Tk()
        self.canvas = tk.Canvas(self.root, width=480, height=480)
        self.canvas.pack()
        self.canvas.bind("<KeyPress>", self.on_keypress)
        self.draw_board()
        self.root.after(1000, self.update)
        self.root.mainloop()
    
    def draw_board(self):
        self.canvas.delete("all")
        for i in range(self.size):
            self.canvas.create_line(40, 40 + i * 30, 440, 40 + i * 30)
            self.canvas.create_line(40 + i * 30, 40, 40 + i * 30, 440)
        for i, j in self.snake.body:
            self.canvas.create_rectangle(35 + j * 30, 35 + i * 30, 65 + j * 30, 65 + i * 30, fill="black")
        i, j = self.food
        self.canvas.create_oval(35 + j * 30, 35 + i * 30, 65 + j * 30, 65 + i * 30, fill="red")
    
    def generate_food(self):
        while True:
            i, j = random.randint(0, self.size - 1), random.randint(0, self.size - 1)
            if (i, j) not in self.snake.body:
                return i, j
    
    def on_keypress(self, event):
        if event.keysym == "Up":
            self.snake.change_direction((-1, 0))
        elif event.keysym == "Down":
            self.snake.change_direction((1, 0))
        elif event.keysym == "Left":
            self.snake.change_direction((0, -1))
        elif event.keysym == "Right":
            self.snake.change_direction((0, 1))
    
    def update(self):
        if not self.snake.move(self.food):
            print("Game over!")
            self.root.destroy()
        else:
            if self.snake.body[-1] == self.food:
                self.food = self.generate_food()
            self.draw_board()
            self.root.after(100, self.update)

game = Game(15)

运行代码后，将出现一个 15x15 的游戏界面，玩家可通过方向键控制贪吃蛇的移动，吃到红色的食物后贪吃蛇会变长。当贪吃蛇碰到边界或自身时，游戏结束。可以通过关闭窗口来结束游戏。