用turtle画一颗五角星

import turtle
turtle.setup(600,400,0,0)
turtle.bgcolor('red')
turtle.color('yellow')
turtle.fillcolor('yellow')


def mygoto(x,y):
    turtle.penup()
    turtle.goto(x,y)
    turtle.pendown()
def draw5jx(r):
    turtle.begin_fill()
    for i in range(5):
        turtle.forward(r)
        turtle.right(144)
    turtle.end_fill()


mygoto(-250,100)
draw5jx(100)
                

mygoto(-95,155)
draw5jx(50)

mygoto(-10,75)
draw5jx(50)

mygoto(-75,0)
draw5jx(50)

mygoto(-135,-80)
draw5jx(50)