擅长:python、mysql、java
<p>作为<a href="https://stackoverflow.com/questions/5262702/argparse-module-how-to-add-option-without-any-argument/5262769#5262769">@Felix Kling suggested</a>使用<code>action='store_true'</code>:</p>
<pre><code>>>> from argparse import ArgumentParser
>>> p = ArgumentParser()
>>> _ = p.add_argument('-f', '--foo', action='store_true')
>>> args = p.parse_args()
>>> args.foo
False
>>> args = p.parse_args(['-f'])
>>> args.foo
True
</code></pre>