New attributes of HTML5 form
1.HTML 5 formaction attribute
Definition and usage
The formaction attribute specifies where to go when submitting a form. Send form data.
Note:
1. The formaction attribute specifies the URL of the file that handles the input control when the form is submitted.
2. The formaction attribute overrides the action attribute of the
Note: The formaction attribute applies to type="submit" and type="image".
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>formaction</title>
</head>
<body>
<form id="testform">
<input type="submit" name="s1" value="v1" formaction="http://localhost:8080/index01/Test01.jsp">提交到http://localhost:8080/index01/Test01.jsp
<input type="submit" name="s2" value="v2" formaction="http://localhost:8080/index01/Test02.jsp">提交到http://localhost:8080/index01/Test02.jsp
<input type="submit" name="s3" value="v3" formaction="http://localhost:8080/index01/Test03.jsp">提交到http://localhost:8080/index01/Test03.jsp
</form>
</body>
</html>2.HTML 5
定义和用法
formmethod 属性覆盖 form 元素的 method 属性。
可以通过以下方式发送 form-data ：
以 URL 变量 (使用 method="get") 的形式来发送
以 HTTP post (使用 method="post") 的形式来发送
该属性与 type="submit" 配合使用。
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
</head>
<body>
<form id="testform">
<input type="submit" name="s1" value="v1" formmethod="post" formaction="http://localhost:8080/index01/Test01.jsp">http://localhost:8080/index01/Test01.jsp
<input type="submit" name="s2" value="v2" formmethod="get" formaction="http://localhost:8080/index01/Test02.jsp">http://localhost:8080/index01/Test02.jsp
<input type="submit" name="s1" value="v1" formmethod="post" formaction="http://localhost:8080/index01/Test03.jsp">http://localhost:8080/index01/Test03.jsp
</form>
</body>
</html>和
<!DOCTYPE HTML> <html> <body> <form action="/example/html5/demo_form.asp" method="get"> 姓：<input type="text" name="lname" /><br /> 名：<input type="text" name="fname" /><br /> <button type="submit" >提交</button> <button type="submit" formmethod="post" formaction="/example/html5/demo_post.asp">使用 POST 来提交</button> </form> </body> </html>
3HTML 5 autofocus 属性
定义和用法
autofocus 属性规定当页面加载时 input 元素应该自动获得焦点。
如果使用该属性，则 input 元素会获得焦点。
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
</head>
<body>
<form>
<input type="text">
<input type="text" autofocus>
</form>
</body>
</html>本文讲解了HTML5 form新增的属性 ，更多相关内勤请关注php中文网。
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