擅长:python、mysql、java
<p>您可以使用<code>filter</code>:</p>
<pre><code>import numpy as np
NotPresent = ["Alan", "Susie", np.nan, np.nan, np.nan]
NotPresent = list(filter(lambda i: not i is np.nan, NotPresent))
print(NotPresent)
</code></pre>
<p>输出:</p>
^{pr2}$