<p>下面是我对@JaredWindover的解决方案进行的修改。首先,尽可能多的图形对象设置在嵌套循环之前完成,利用Zelle的<code>clone()</code>方法。其次,它修复了一个很难在小范围内看到的缺陷,即圆的一半轮廓是黑色而不是红色。最后,与Jared的解决方案和OP的代码不同,它是可伸缩的:</p>
<pre><code>from graphics import *
RADIUS = 25
def redCircles(win):
outline_template = Circle(Point(0, 0), RADIUS)
outline_template.setOutline('red')
fill_template = outline_template.clone()
fill_template.setFill('red')
horizontal_template = Rectangle(Point(0, 0), Point(RADIUS * 2, RADIUS))
horizontal_template.setFill('white')
horizontal_template.setOutline('white')
vertical_template = Rectangle(Point(0, 0), Point(RADIUS, RADIUS * 2))
vertical_template.setFill('white')
vertical_template.setOutline('white')
for parity, x in enumerate(range(RADIUS, RADIUS * 10, RADIUS * 2)):
for y in range(RADIUS, RADIUS * 10, RADIUS * 2):
fill = fill_template.clone()
fill.move(x, y)
fill.draw(win)
if parity % 2 == 1:
rectangle = horizontal_template.clone()
rectangle.move(x - RADIUS, y)
else:
rectangle = vertical_template.clone()
rectangle.move(x - RADIUS, y - RADIUS)
rectangle.draw(win)
outline = outline_template.clone()
outline.move(x, y)
outline.draw(win)
if __name__ == '__main__':
win = GraphWin('Patch2', RADIUS * 10, RADIUS * 10)
redCircles(win)
win.getMouse()
win.close()
</code></pre>