Python Turtle 透明填充？

Question

我正在尝试使用 Turtle 库重新创建这张图片:

但我在尝试使内圈“透明”时遇到了困难。我搜索了文档，但找不到更改圆圈填充颜色的不透明度的方法。

我尝试的是:

colors = ["black", "magenta", "pink", "blue", "green", "yellow", "orange", "red", "white"]

for i in range(8):
    my_turtle.fillcolor(colors[i])
    my_turtle.begin_fill()
    my_turtle.circle(150)
    my_turtle.end_fill()
    my_turtle.fillcolor("white")
    my_turtle.begin_fill()
    my_turtle.circle(130)
    my_turtle.end_fill()
    my_turtle.fillcolor(colors[i])
    my_turtle.begin_fill()
    my_turtle.circle(100)
    my_turtle.end_fill()
    my_turtle.fillcolor("white")
    my_turtle.begin_fill()
    my_turtle.circle(80)
    my_turtle.end_fill()
    my_turtle.rt(45)

但我得到的是:

有什么想法吗？

Answer 1

您可以反转圆圈颜色的每个较小的圆圈:

colors = ["black", "magenta", "pink", "blue", "green", "yellow", "orange", "red", "white"]

for i in range(8):
    my_turtle.fillcolor(colors[i])
    my_turtle.begin_fill()
    my_turtle.circle(150)
    my_turtle.circle(130, -360)
    my_turtle.end_fill()
    my_turtle.fillcolor(colors[i])
    my_turtle.begin_fill()
    my_turtle.circle(100)
    my_turtle.circle(80, -360)
    my_turtle.end_fill()
    my_turtle.rt(45)

输出: