python：turtle库的一次画图

使用turtle库绘制类似斯洛克形状的图案，绘制效果如下图所示：

import turtle 
def drawCircle():
    turtle.pendown()
    turtle.circle(20)
    turtle.penup()
    turtle.fd(40)
    
    
    
def drawRowCircle(n):
    for j  in range(n,1,-1):
        for i in range(j):
            drawCircle() 
        turtle.fd(-j*40-20)
        turtle.right(90)
        turtle.fd(40)
        turtle.left(90)
        turtle.fd(40)
    drawCircle()

drawRowCircle(5)
turtle.hideturtle()
turtle.done()