无内线五角红星（边为黄色）

import turtle

turtle.pensize(5)
turtle.pencolor("yellow")
turtle.fillcolor("red")

turtle.begin_fill()
for i in range(5):
    turtle.fd(200)
    turtle.lt(72)
    turtle.fd(200)
    turtle.rt(144)
turtle.end_fill()

turtle.hideturtle()   #隐藏画笔
turtle.done()         #结束绘制