擅长:python、mysql、java
<p>通过使用<code>for</code>循环和列表理解而不是<code>while</code>,可以大大简化代码</p>
<pre><code>textList = ["3", "2 string", "3FOO"]
newList = []
for s in textList:
numlist = [c for c in s if c.isnumeric()]
newList.append("".join(numlist))
</code></pre>