search
HomeWeb Front-endHTML TutorialSummarize some uses of HTML form
Summarize some uses of HTML formJun 25, 2017 am 09:46 AM
formhtmlform

HTML form tag summary

    最近研究 form标签,有一些小心得写下来与大家分享分享,共勉。在小结的最后有一个form表单的小例子,可以作为参考。                                                    -----DanlV


form是HTML的一个极为重要的功能标签之一。


##Input field input

  • input type The attributes have the following attribute values:

    1.button button (more details below)
    2.file is used for file selection
    3.hidden hidden field, which can realize hidden operations
    4.text Used for text input
    5.password input with password
    6.radio radio button, the same name attribute is a group
    7.checkbox multi-select button, the name attribute is the same group
    8.image image form submit button
    9.reset reset form button
    10.submit submit form button

  • alt attribute, defined when the button image , the alternative text of the slide

  • src attribute, which defines the link address of the image when the button is an image

  • checked attribute, which defines the default option

    The value of checked is true or false, or it can be written directly as checked

  • disabled attribute to disable the current Input field (usage as checked)

  • readonly attribute, read-only for the current input field, the actual function is the same as disabled, but the displayed effect is different (usage as checked)

  • maxlength attribute, defines the maximum length of input field characters

  • name attribute, defines the name of the current input field

  • value attribute, defines the default value of the current input field


Text input area textarea

  • rows attribute, specifies visible rows Number


  • cols attribute, specifies the number of visible columns


  • ##disabled attribute, disables the current text input area
  • name attribute, the name of the current text area
  • readonly attribute, the current text area is read-only
Button button

    There are three type types:
  • 1.type="button"General function button

    2.type="submit"Submit form form Function button
    3.type="reset"Reset form form function related function button


  • disabled attribute, disable this button
  • name attribute, the name of the button
  • value attribute, the default value of the text content displayed on the button
Down menu select

    Related attributes:
  • 1.disabled attribute, disable the menu

    2.multiple attribute, stipulates that multiple items can be selected at the same time
    3.name attribute, drop-down The name of the list
    4.size attribute, the number of visible items in the menu

  • ##Tag
  • , defines the option grouping of the drop-down list, the attribute is :

    5.label attribute, defines the label (name) of the option group, required attribute 6.disabled attribute, disabled

  • Attribute, defines the options in the drop-down list (this label is in the

    label), the attributes are: 1.disabled attribute, disables 2.label attribute, defines when using

    ##The label in the form

In order to make the input more user-friendly and improve the user experience, When clicking on the prompt text, the cursor will automatically focus on the input position. Use this label. There are two ways to use it:

    This method uses the for attribute of label, and the value specifies the name of the input area
  • Put the input directly into the label. There is no need to use the for attribute, which is recommended.

    ---Group related elements in the form fieldset

  • Label defines the group title. See the last code for relevant examples.

Code Example

        

            
                天下第一争霸赛                                                   
            
            
选武器: 刀                         剑                         枪                         鞭             
挑战对手: 梅超风                             洪七                             金毛狮王谢逊                             张三丰             
            
              
               
                   

The above is the detailed content of Summarize some uses of HTML form. For more information, please follow other related articles on the PHP Chinese website!

Statement
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
HTML超文本标记语言--超在那里?(文档分析)HTML超文本标记语言--超在那里?(文档分析)Aug 02, 2022 pm 06:04 PM

本篇文章带大家了解一下HTML(超文本标记语言),介绍一下HTML的本质,HTML文档的结构、HTML文档的基本标签和图像标签、列表、表格标签、媒体元素、表单,希望对大家有所帮助!

html和css算编程语言吗html和css算编程语言吗Sep 21, 2022 pm 04:09 PM

不算。html是一种用来告知浏览器如何组织页面的标记语言,而CSS是一种用来表现HTML或XML等文件样式的样式设计语言;html和css不具备很强的逻辑性和流程控制功能,缺乏灵活性,且html和css不能按照人类的设计对一件工作进行重复的循环,直至得到让人类满意的答案。

web前端笔试题库之HTML篇web前端笔试题库之HTML篇Apr 21, 2022 am 11:56 AM

总结了一些web前端面试(笔试)题分享给大家,本篇文章就先给大家分享HTML部分的笔试题(附答案),大家可以自己做做,看看能答对几个!

总结HTML中a标签的使用方法及跳转方式总结HTML中a标签的使用方法及跳转方式Aug 05, 2022 am 09:18 AM

本文给大家总结介绍a标签使用方法和跳转方式,希望对大家有所帮助!

HTML5中画布标签是什么HTML5中画布标签是什么May 18, 2022 pm 04:55 PM

HTML5中画布标签是“<canvas>”。canvas标签用于图形的绘制,它只是一个矩形的图形容器,绘制图形必须通过脚本(通常是JavaScript)来完成;开发者可利用多种js方法来在canvas中绘制路径、盒、圆、字符以及添加图像等。

html中document是什么html中document是什么Jun 17, 2022 pm 04:18 PM

在html中,document是文档对象的意思,代表浏览器窗口的文档;document对象是window对象的子对象,所以可通过“window.document”属性对其进行访问,每个载入浏览器的HTML文档都会成为Document对象。

html5废弃了哪个列表标签html5废弃了哪个列表标签Jun 01, 2022 pm 06:32 PM

html5废弃了dir列表标签。dir标签被用来定义目录列表,一般和li标签配合使用,在dir标签对中通过li标签来设置列表项,语法“<dir><li>列表项值</li>...</dir>”。HTML5已经不支持dir,可使用ul标签取代。

Html5怎么取消td边框Html5怎么取消td边框May 18, 2022 pm 06:57 PM

3种取消方法:1、给td元素添加“border:none”无边框样式即可,语法“td{border:none}”。2、给td元素添加“border:0”样式,语法“td{border:0;}”,将td边框的宽度设置为0即可。3、给td元素添加“border:transparent”样式,语法“td{border:transparent;}”,将td边框的颜色设置为透明即可。

See all articles

Hot AI Tools

Undresser.AI Undress

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

AI Clothes Remover

Online AI tool for removing clothes from photos.

Undress AI Tool

Undress AI Tool

Undress images for free

Clothoff.io

Clothoff.io

AI clothes remover

AI Hentai Generator

AI Hentai Generator

Generate AI Hentai for free.

Hot Article

R.E.P.O. Energy Crystals Explained and What They Do (Yellow Crystal)
2 weeks agoBy尊渡假赌尊渡假赌尊渡假赌
R.E.P.O. Best Graphic Settings
2 weeks agoBy尊渡假赌尊渡假赌尊渡假赌
R.E.P.O. How to Fix Audio if You Can't Hear Anyone
2 weeks agoBy尊渡假赌尊渡假赌尊渡假赌

Hot Tools

Dreamweaver Mac version

Dreamweaver Mac version

Visual web development tools

mPDF

mPDF

mPDF is a PHP library that can generate PDF files from UTF-8 encoded HTML. The original author, Ian Back, wrote mPDF to output PDF files "on the fly" from his website and handle different languages. It is slower than original scripts like HTML2FPDF and produces larger files when using Unicode fonts, but supports CSS styles etc. and has a lot of enhancements. Supports almost all languages, including RTL (Arabic and Hebrew) and CJK (Chinese, Japanese and Korean). Supports nested block-level elements (such as P, DIV),

PhpStorm Mac version

PhpStorm Mac version

The latest (2018.2.1) professional PHP integrated development tool

SublimeText3 Chinese version

SublimeText3 Chinese version

Chinese version, very easy to use

MinGW - Minimalist GNU for Windows

MinGW - Minimalist GNU for Windows

This project is in the process of being migrated to osdn.net/projects/mingw, you can continue to follow us there. MinGW: A native Windows port of the GNU Compiler Collection (GCC), freely distributable import libraries and header files for building native Windows applications; includes extensions to the MSVC runtime to support C99 functionality. All MinGW software can run on 64-bit Windows platforms.