擅长:python、mysql、java
<blockquote>
<p>range creates a list, so if you do <code>range(1, 10000000)</code> it creates a list in memory with <code>9999999</code> elements.</p>
<p><code>xrange</code> <s>is a generator, so it</s> is a sequence object <s>is a</s> that evaluates lazily. </p>
</blockquote>
<p>这是真的,但是在Python 3中,<code>.range()</code>将由Python 2<code>.xrange()</code>实现。如果需要实际生成列表,则需要执行以下操作:</p>
<pre><code>list(range(1,100))
</code></pre>