擅长:python、mysql、java
<p>你可以更容易地使用<a href="https://docs.scipy.org/doc/numpy/reference/generated/numpy.where.html" rel="nofollow noreferrer">^{<cd1>}</a>。</p>
<pre><code>high_scores1['is_score_chased'] = np.where(high_scores1['runs1']>=high_scores1['runs2'],
'yes', 'no')
</code></pre>
<p>通常,如果您发现自己试图像设置列那样显式地迭代,那么会有一个像<code>apply</code>或<code>where</code>这样的抽象,它会更快、更简洁。</p>