擅长:python、mysql、java
<p>试着这样做:</p>
<pre><code>>>> my_str = "word anotherword +aspecialword lameword +heythisone +test hello"
>>> " ".join(x[1:] for x in my_str.split() if x.startswith("+"))
'aspecialword heythisone test'
</code></pre>
<blockquote>
<p>str.startswith(prefix[, start[, end]])</p>
<p>Return True if string starts with the prefix, otherwise return False. prefix can also be a tuple of prefixes to look for. With optional start, test string beginning at that position. With optional end, stop comparing string at that position.</p>
</blockquote>