python四十几行代码实现界面化贪吃蛇（几十行代码的python程序）

python四十几行代码实现界面化贪吃蛇（几十行代码的python程序）

python贪吃蛇

from turtle import *from random import randrangefrom freegames import square, vectorfood = vector(0, 0)snake = [vector(10, 0)]aim = vector(0, -10)def change(x, y): "Change snake direction." aim.x = x aim.y = ydef inside(head): "Return True if head inside boundaries." return -200 < head.x < 190 and -200 < head.y < 190def move(): "Move snake forward one segment." head = snake[-1].copy() head.move(aim) if not inside(head) or head in snake: square(head.x, head.y, 9, 'red') update() return snake.append(head) if head == food: print('Snake:', len(snake)) food.x = randrange(-15, 15) * 10 food.y = randrange(-15, 15) * 10 else: snake.pop(0) clear() for body in snake: square(body.x, body.y, 9, 'black') square(food.x, food.y, 9, 'green') update() ontimer(move, 100)setup(420, 420, 370, 0)hideturtle()tracer(False)listen()onkey(lambda: change(10, 0), 'Right')onkey(lambda: change(-10, 0), 'Left')onkey(lambda: change(0, 10), 'Up')onkey(lambda: change(0, -10), 'Down')move()done()

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