擅长:python、mysql、java
<blockquote>
<p>I'm attempting to make a prime number generator in python 2.7 and plan to use an array (or list) of booleans which will indicate whether a given number is prime.</p>
</blockquote>
<p>这听起来真是浪费。一个更好的方法是让一个<code>set()</code>只包含您需要的数字:</p>
<pre><code>>>> primes = {2, 3, 5, 7}
>>> 4 in primes
False
>>> 5 in primes
True
</code></pre>