擅长:python、mysql、java
<p>您可以简单地使用<a href="http://en.wikipedia.org/wiki/Binomial_coefficient" rel="nofollow">binomial coefficients</a>的定义:
在</p>
<pre><code>from math import factorial
tri = [[factorial(n) // (factorial(k) * factorial(n - k)) for k in range(n+1)]
for n in range(height)]
</code></pre>