擅长:python、mysql、java
<p>从<a href="http://dev.lexalytics.com/wiki/pmwiki.php?n=Main.POSTags" rel="nofollow noreferrer">http://dev.lexalytics.com/wiki/pmwiki.php?n=Main.POSTags</a>开始,标记的意思是</p>
<pre><code>MD Modal verb (can, could, may, must)
VB Base verb (take)
VBC Future tense, conditional
VBD Past tense (took)
VBF Future tense
VBG Gerund, present participle (taking)
VBN Past participle (taken)
VBP Present tense (take)
VBZ Present 3rd person singular (takes)
</code></pre>
<p>所以你的代码是</p>
<pre><code>tense["future"] = len([word for word in tagged if word[1] in ["VBC", "VBF"])
</code></pre>