#Gwin_lee

import turtle
import time


def move(x, y):
	# 海龟箭头移动到当前拖动位置
    turtle.goto(x, y)
    # 清除绑定关系
    turtle.ondrag(None)
    # 再次绑定
    turtle.ondrag(move)
    # 绑定turn方法
    turtle.ondrag(move)


screen = turtle.getscreen()


screen.update()