擅长:python、mysql、java
<p><code>nuke.exists("Name of Knob")</code>将检查旋钮是否存在。尝试在if语句中使用它。在</p>
<p>有关<a href="http://community.thefoundry.co.uk/discussion/topic.aspx?f=190&t=101399" rel="nofollow">Nuke forum</a>的详细信息。在</p>
<p>另请参见<a href="https://www.thefoundry.co.uk/products/nuke/developers/100/pythonreference/nuke-module.html#exists" rel="nofollow">Documentation on nuke.exists</a></p>