您可以直接使用.childnodes属性数组来保存一些字符，但这种样式是脆弱的，例如，如果有子元素，而没有的话。

You might use the.childnodes attribute array directly to save a few characters, but this is fragile if, for example, there are children of other than.

youdao

请注意，样式表数据作为元素内容时不可以携带字符引用，但作为属性值时可以携带字符引用。

Please note that style sheet data that is element content may not contain character references, but style sheet data that is the value of an attribute may contain them.

youdao

请注意，样式表数据作为元素内容时不可以携带字符引用，但作为属性值时可以携带字符引用。

Please note that style sheet data that is element content may not contain character references, but style sheet data that is the value of an attribute may contain them.

youdao