HTML元素可以有多个id吗?

I don´t think you can have two Id´s but it should be possible. Using the same id twice is a different case... like two people using the same passport. However one person could have multiple passports... Came looking for this since I have a situation where a single employee can have several functions. Say "sysadm" and "team coordinator" having the id="sysadm teamcoordinator" would let me reference them from other pages so that employees.html#sysadm and employees.html#teamcoordinator would lead to the same place... One day somebody else might take over the team coordinator function while the sysadm remains the sysadm... then I only have to change the ids on the employees.html page ... but like I said - it doesn´t work :(

2010-09-13 10:53:52

从7.5.2元素标识符:id和class属性:

id属性为元素赋值唯一标识符由SGML解析器验证)。

and

ID和NAME标记必须以字母([a- za -z])开头，并且可以是后面跟着任意数量的字母，数字([0-9])，连字符(“-”)，下划线(“_”),冒号(“:”)和时间(“。”)。

所以“id”必须是唯一的，不能包含空格。

2013-08-13 13:41:41

I don´t think you can have two Id´s but it should be possible. Using the same id twice is a different case... like two people using the same passport. However one person could have multiple passports... Came looking for this since I have a situation where a single employee can have several functions. Say "sysadm" and "team coordinator" having the id="sysadm teamcoordinator" would let me reference them from other pages so that employees.html#sysadm and employees.html#teamcoordinator would lead to the same place... One day somebody else might take over the team coordinator function while the sysadm remains the sysadm... then I only have to change the ids on the employees.html page ... but like I said - it doesn´t work :(

2010-09-13 10:53:52

不。来自XHTML 1.0规范

In XML, fragment identifiers are of type ID, and there can only be a single attribute of type ID per element. Therefore, in XHTML 1.0 the id attribute is defined to be of type ID. In order to ensure that XHTML 1.0 documents are well-structured XML documents, XHTML 1.0 documents MUST use the id attribute when defining fragment identifiers on the elements listed above. See the HTML Compatibility Guidelines for information on ensuring such anchors are backward compatible when serving XHTML documents as media type text/html.

2008-10-10 16:09:16

我想说技术上是可以的，因为真正呈现的内容在技术上总是依赖于浏览器。大多数浏览器都尽可能地遵循规范，据我所知，CSS规范中并没有反对这一点。我只担保在任何其他解释器介入之前发送到浏览器的实际HTML、CSS和JavaScript代码。

然而，我也说不，因为我通常测试的每个浏览器实际上都不允许您这样做。

如果您需要自己查看，请将以下文件保存为.html文件，并在主要浏览器中打开它。在我测试的所有浏览器中，JavaScript函数都不能与元素匹配。然而，从id标签中删除任何一个“hunkojunk”都可以正常工作。

示例代码

<html>
<head>
</head>
<body>
    <p id="hunkojunk1 hunkojunk2"></p>

    <script type="text/javascript">
        document.getElementById('hunkojunk2').innerHTML = "JUNK JUNK JUNK JUNK JUNK JUNK";
    </script>
</body>
</html>

2012-04-18 18:21:17

Nay.

从3.2.3.1的id属性:

不能包含空格。

id="a b" <——查找该VaLuE中的空格字符。

也就是说，可以对多个id进行样式化。但如果您遵循规范，答案是否定的。

2017-12-16 13:13:36

HTML元素可以有多个id吗?

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