能写一些python turtle小游戏的代码吗

当然可以，以下是一个简单的Python Turtle小游戏的代码示例：

import turtle
import random

# 设置背景颜色
turtle.bgcolor("lightblue")

# 创建一个乌龟对象
player = turtle.Turtle()
player.color("black")
player.shape("turtle")
player.penup()
player.speed(0)

# 创建随机食物
food = turtle.Turtle()
food.color("red")
food.shape("circle")
food.penup()
food.speed(0)
food.goto(random.randint(-200, 200), random.randint(-200, 200))

# 设置键盘事件函数
def move_up():
    player.setheading(90)
    player.forward(10)

def move_down():
    player.setheading(270)
    player.forward(10)

def move_left():
    player.setheading(180)
    player.forward(10)

def move_right():
    player.setheading(0)
    player.forward(10)

# 绑定键盘事件
turtle.onkeypress(move_up, "Up")
turtle.onkeypress(move_down, "Down")
turtle.onkeypress(move_left, "Left")
turtle.onkeypress(move_right, "Right")
turtle.listen()

# 循环检测碰撞
while True:
    if player.distance(food) < 20:
        food.goto(random.randint(-200, 200), random.randint(-200, 200))
    if player.xcor() > 300 or player.xcor() < -300 or player.ycor() > 300 or player.ycor() < -300:
        player.goto(0,0)
    if player.distance(food) < 20:
        food.goto(random.randint(-200, 200), random.randint(-200, 200))
    if player.xcor() > 300 or player.xcor() < -300 or player.ycor() > 300 or player.ycor() < -300:
        player.goto(0,0)

这是一个基于Python Turtle的简单小游戏，你可以通过上下左右键控制乌龟移动，吃掉食物即可得分。当乌龟撞到边界时，会自动回到初始位置，吃掉食物后食物会随机移动到一个新的位置。