绘制图形,最小的圆圈半径为20像素,不同圆圈之间的半径差20像素。效果如下图,完善代码。 import tur
tle r=20 head=90 for i in range(3): turtle.seth(head) turtle.circle(r) r=r+20 r=20 head=__________ for i in range(3): turtle.seth(head) turtle.circle(r) r=r+20 turtle.done
0) turtle.pendown() def DrawLine(size): for angle in [0,90,–90,–90,90]: turtle.left(angle) turtle.fd(size) for i in [20,30,40,50,40,30,20]: ______________ turtle.hideturtle() turtle.done()