form object
document.getElentById(); document.forms.username document.frm1.username
The properties of the form itself are all properties that can be objects.
action method enctype title submit() onfocus(); event onblur(); event onchange(); event form 上 onsubmit();
<form> element
define html form
<form> form elements </form>
Form elements refer to the different types of input elements, checkboxes, radio buttons, submit buttons, and so on.
<input> element
The <input> element is the most important form element and has many forms, depending on the type attribute
text defines regular text input radio defines the radio button input submit defines the submit button
<html> <body> <form> Account:<br> <input type="text" name="账号"> <br> Password:<br> <input type="text" name="密码"> <input type="submit" value="Submit"> </form> </body> </html>
filedset combined form data
Related data in the fieldset element combination
The legend element defines the title for the fieldest element
<legend>Personal information:</legend>
form attribute list
| accept-charset | Specifies the character set used in the submitted form |
| action | The address (URL) that specifies where to submit the form |
| autocomplete | Specifies that the browser should autocomplete the form |
| enctype | Specifies the encoding of the submitted data |
| method | Specifies the HTTP method to use when submitting the form |
| name | Specifies the name that identifies the form (for DOM use: document.forms.name). |
| novalidate | Specifies that the browser does not validate the form. |
| target | Specifies the target of the address in the action attribute |
password input type
<input type="password"> defines the password field
<form action=""> User name:<br> <input type="text" name="userid"> <br> User password:<br> <input type="password" name="psw"> </form>