求下列代码有何问题？

from turtle import *
def yin(radius,colorl,color2) :
    width(3)
    color("black",color1)
    begin_fill()
    circle(radius/2.,180)
    circle(radius,180)
    left(180)
    circle(-radius/2.,180)
    end_fill()
    left(90)
    up()
    forward(radius * 0.35)
    right(90)
    down()
    color(color1,color2)
    begin_fill()
    circle(radius*0.15)
    end_fill()
    left(90)
    up()
    backward(radius*0.35)
    down()
    left(90)
def main():
    reset()
    yin(200,"black","white")
    yin(200,"white","black")
    ht()
    return"Done!"
main()

第2行的请求参数 colorl 和 函数内部的 color1 不是一个

仔细看看，一个l，一个1