擅长:python、mysql、java
<p>您正在描述<a href="https://docs.python.org/3/library/random.html#random.sample" rel="nofollow noreferrer">^{<cd1>}</a>的基本用法。在</p>
<pre><code>>>> colours = ["Red","Yellow","Blue","Green","Orange","White"]
>>> random.sample(colours, 4)
['Red', 'Blue', 'Yellow', 'Orange']
</code></pre>
<p>如果希望允许重复,请使用<a href="https://docs.python.org/3/library/random.html#random.choices" rel="nofollow noreferrer">^{<cd2>}</a>(python3.6中的新功能)。在</p>
^{pr2}$