from turtle import *pensize(1)pencolor("black")i=1while(i<=160): seth(90) fd(i) seth(180) fd(i+2) seth(-90) fd(i+3) seth(0) fd(i+4) i=i+5 (标有颜色的这几个编码代表每两根线)seth(90)fd(161)seth(180)fd(162)seth(-90)fd(163)