双鱼图，,#!/usr/bin/e

双鱼图，,#!/usr/bin/e

#!/usr/bin/env python3"""       turtle-example-suite:            tdemo_yinyang.pyAnother drawing suitable as a beginner'sprogramming example.The small circles are drawn by the circlecommand."""from turtle import *def yin(radius, color1, 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!"if __name__ == '__main__':    main()    mainloop()