擅长:python、mysql、java
<p>对于<strong>1</strong>项目,请使用<code>list.index</code>:</p>
<pre><code>>>> x = ["Moon","Earth","Jupiter","Neptune","Earth","Venus"]
>>> x.index("Earth")
1
</code></pre>
<p>对于所有索引,作为<code>lambda</code>函数:</p>
<pre><code>>>> indexes = lambda l, k: [i for i, e in enumerate(l) if e == k]
>>> indexes(x, "Earth")
[1, 4]
</code></pre>