老师讲过了，这个讨论不合格

老师上课源代码讲解，为什么还要发帖子？

对于一级水平来说是有些难，好好一下消化吧

我真怕你看不懂

import turtle
def sin(degree):
    import math
    radians = degree * math.pi / 180
    return math.sin(radians)
def cos(degree):
    import math
    radians = degree * math.pi / 180
    return math.cos(radians)
def star(x,y,length):
    turtle.penup()
    turtle.goto(x,y)
    turtle.pendown()
    turtle.begin_fill()
    angle = 144
    i = 0
    while i < 5:
        turtle.forward(length)
        turtle.right(angle)
        i = i + 1
    turtle.end_fill()
def center_star(x,y,r):
    turtle.penup()
    turtle.goto(x,y)
    turtle.pendown()
    angle = 18
    x1 = x - cos(angle) * r
    y1 = y + sin(angle) * r
    length = cos(angle) * r * 2
    star(x1,y1,length)
def circle(x, y, r):
    turtle.penup()
    turtle.goto(x, y)
    turtle.pendown()
    y1 = y - r
    x1 = x
    turtle.penup()
    turtle.goto(x1, y1)
    turtle.pendown()
    turtle.circle(r)
turtle.color('red')
turtle.begin_fill()
circle(0,0,400/2)
turtle.end_fill()
turtle.color('white')
turtle.begin_fill()
circle(0,0,340/2)
turtle.end_fill()
turtle.color('red')
turtle.begin_fill()
circle(0,0,280/2)
turtle.end_fill()
turtle.color('blue')
turtle.begin_fill()
circle(0,0,240 / 2)
turtle.end_fill()
turtle.color('white')
center_star(0,0,240/2)

这个·····应该很少人会吧？（如果能解答的话当我没说）