擅长:python、mysql、java
<p>稍微概括一下:</p>
<pre><code>from visual import sphere,color
from itertools import product
L = 2
R = 0.25
xvals = range(-L, L+1)
yvals = range(-L, L+1)
zvals = range(-L, L+1)
colorfn = lambda *args: [color.yellow, color.green][sum(args)%2]
for pos in product(xvals, yvals, zvals):
sphere(pos=pos, radius=R, color=colorfn(*pos))
</code></pre>
<p>结果</p>
<p><img src="https://i.stack.imgur.com/BVgKm.png" alt="enter image description here"/></p>