通过应用这个简单的概念，您可以根据其他类似的条件，使用多个样式表。

You can apply this simple concept to use multiple style sheets based on other similar conditions.

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使用导入或包含样式表，尤其是如果确实需要条件包含的话。

Using imported or included stylesheets, especially if you really wanted conditional inclusion.

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为了编写可用于1.0、2.0以及将来版本的样式表，可以结合使用条件和use - when来避免静态错误，不管是用什么版本的处理程序。

To write a stylesheet that will work with 1.0, 2.0, and a future version, then you can combine conditional and use-when to avoid static errors no matter which version of processor you are using.

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