擅长:python、mysql、java
<p>这可能很有用:<a href="http://blog.codinghorror.com/shuffling/" rel="nofollow">http://blog.codinghorror.com/shuffling/</a></p>
<p>或者像这样:(Pseodocode信用:Wikipdia)</p>
<pre><code>for i from n−1 downto 1 do
j ← random integer such that 0 ≤ j ≤ i
exchange a[j] and a[i]
</code></pre>
<p><a href="https://en.wikipedia.org/wiki/Fisher%E2%80%93Yates_shuffle" rel="nofollow">https://en.wikipedia.org/wiki/Fisher%E2%80%93Yates_shuffle</a></p>