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forms 屬性會回傳一個包含目前頁面中所有 <form> 元素的集合物件（型別為 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 |
|---|---|---|
| WHATWG HTML Living Standard The definition of 'Document.forms' in that specification. |
Living Standard | |
| Document Object Model (DOM) Level 2 HTML Specification The definition of 'Document.forms' in that specification. |
Recommendation | Initial definition. |