绘制八卦阵

 1 #八卦阵
 2 import turtle
 3 turtle.pensize(5)                  #画笔大小
 4 turtle.penup()
 5 turtle.goto(0,120)
 6 turtle.pendown()
 7 
 8 turtle.color("black","black")
 9 turtle.begin_fill()
10 turtle.circle(-120,180)
11 turtle.circle(-60,180)
12 turtle.circle(60,180)
13 turtle.end_fill()
14 turtle.circle(120,180)
15 
16 turtle.penup()
17 turtle.goto(0,40)
18 turtle.pendown()
19 turtle.begin_fill()
20 turtle.circle(20)
21 turtle.end_fill()
22 
23 turtle.color("black","white")
24 turtle.penup()
25 turtle.goto(0,-80)
26 turtle.pendown()
27 turtle.begin_fill()
28 turtle.circle(20)
29 turtle.end_fill()
30 
31 turtle.hideturtle()                #隐藏画笔

八卦阵

这里我们取大圆的半径为120，中圆自然是它的一半，小圆我们取中圆的三分之一。这样以后，各个点的坐标都出来了

天灵灵，地灵灵~