擅长:python、mysql、java
<p><code>max</code>和<code>min</code>采用<code>key</code>参数,在该参数中可以指定用于比较的值</p>
<p>使用:</p>
<pre><code>max_x = max(pts, key = lambda x: x[0])
min_x = min(pts, key = lambda x: x[0])
max_y = max(pts, key = lambda x: x[1])
min_y = min(pts, key = lambda x: x[1])
</code></pre>
<p>输出:</p>
<pre><code>>>> print(max_x, min_x, max_y, min_y)
[10, 2] [0, 2] [1, 10] [1, 0]
</code></pre>