id
和 name
属性有什么区别?它们似乎都具有提供标识符的相同目的.
What is the difference between the id
and name
attributes? They both seem to serve the same purpose of providing an identifier.
我想知道(特别是关于 HTML 表单)是否有必要或出于任何原因鼓励使用两者.
I would like to know (specifically with regards to HTML forms) whether or not using both is necessary or encouraged for any reasons.
name
属性在表单提交中发送数据时使用.不同的控件响应不同.例如,您可能有几个具有不同 id
属性但 name
相同的单选按钮.提交后,响应中只有一个值 - 您选择的单选按钮.
The name
attribute is used when sending data in a form submission. Different controls respond differently. For example, you may have several radio buttons with different id
attributes, but the same name
. When submitted, there is just the one value in the response - the radio button you selected.
当然,它的意义远不止这些,但它肯定会让你朝着正确的方向思考.
Of course, there's more to it than that, but it will definitely get you thinking in the right direction.
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