晃悠悠的海龟

"""
   晃悠悠的海龟.py
"""
import time
import math
import turtle

turtle.delay(0)
turtle.speed(0)
turtle.setup(480,360)
turtle.color('yellow')
turtle.bgcolor('black')
turtle.shape('turtle')
turtle.shapesize(5)
turtle.penup()
turtle.left(90)

while 1:
    for angle in range(360):
        r = math.radians(angle)
        x = 100 *  math.sin(r)
        turtle.setx(x)
        time.sleep(0.01)