是autofocus ="autofocus"吗?还是自动对焦? [英] is it autofocus="autofocus" or autofocus?

问题描述

我似乎想起了以前版本的HTML(在HTML5之前)中的大多数(也许是所有)属性，它们要求属性具有诸如readonly="readonly"之类的值.

I seem to recall most (maybe all) attributes in previously versions of HTML (before HTML5) required attributes to have values, like readonly="readonly".

HTML5和autofocus属性是否正确?

Is this true for HTML5 and the autofocus attribute?

推荐答案

在HTML中，可以根据需要使用带或不带值的布尔属性. 对于W3C，像自动对焦这样的布尔值可以这样写:autofocus或autofocus="autofocus"或autofocus="".

In HTML, you use boolean attributes with or without values as you like. A boolean, for W3C, like autofocus can be written like that autofocus or autofocus="autofocus" or also autofocus="".

如果您不希望自动对焦，请不要编写它.

If you don't want autofocus just don't write it.

我认为您很困惑，因为XHTML需要所有属性的值:attributes="values".

I think you are confused because XHTML requires values for all attributes: attributes="values".

以下是有关在HTML中使用布尔属性的一些信息: http://www.whatwg .org/specs/web-apps/current-work/multipage/common-microsyntaxes.html#boolean-attribute

Here is some information about boolean attribute use in HTML: http://www.whatwg.org/specs/web-apps/current-work/multipage/common-microsyntaxes.html#boolean-attribute

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