<p>我有一个非常混乱的数据,我试图删除的元素,包含字母或单词。我试图捕捉有字母数字和数字值的元素。我试过了。isalpha(),但没用。如何删除此项?你知道吗</p>
<pre><code>lista = ['A8817-2938-228','12421','12323-12928-A','12323-12928',
'-','A','YDDEWE','hello','world','testing_purpose','testing purpose',
'A8232-2938-228','N7261-8271']
lista
</code></pre>
<p>已尝试:</p>
<pre><code>[i.isalnum() for i in lista] # gives boolean, but opposite of what I need.
</code></pre>
<p>输出:</p>
<pre><code>['A8817-2938-228','12421','12323-12928-A','12323-12928','-','A8232-2938-228','N7261-8271']
</code></pre>
<p>谢谢!你知道吗</p>