--- title: Document.forms slug: Web/API/Document/forms translation_of: Web/API/Document/forms ---
{{APIRef("DOM")}}

forms 屬性會回傳一個包含目前頁面中所有 {{HTMLElement("form")}} 元素的集合物件（型別為 {{domxref("HTMLCollection")}}）。

語法

collection = document.forms;

範例：取得表單資訊

<!DOCTYPE html>
<html lang="en">

<head>
<title>document.forms example</title>
</head>

<body>

<form id="robby">
  <input type="button" onclick="alert(document.forms[0].id);" value="robby's form" />
</form>

<form id="dave">
  <input type="button" onclick="alert(document.forms[1].id);" value="dave's form" />
</form>

<form id="paul">
  <input type="button" onclick="alert(document.forms[2].id);" value="paul's form" />
</form>

</body>
</html>

範例 2：取得表單內的元素

var selectForm = document.forms[index];
var selectFormElement = document.forms[index].elements[index];

規範

Specification Status Comment
{{SpecName('HTML WHATWG', '#dom-document-forms', 'Document.forms')}} {{ Spec2('HTML WHATWG') }}  
{{SpecName('DOM2 HTML', 'html.html#ID-1689064', 'Document.forms')}} {{ Spec2('DOM2 Events') }} Initial definition.

參見