擅长:python、mysql、java
<p>使用<a href="https://docs.python.org/3/library/functions.html#enumerate" rel="nofollow noreferrer">^{<cd1>}</a>(注意:第一个单词的索引将是<code>0</code>)和<a href="https://docs.python.org/3/library/stdtypes.html#str.split" rel="nofollow noreferrer">^{<cd3>}</a>:</p>
<pre><code>s = "i love you you love me we all love barney"
for wordno, word in enumerate(s.split()):
if word == "love":
print(wordno)
</code></pre>
<p>输出:</p>
^{pr2}$