zoukankan      html  css  js  c++  java
  • 吴裕雄--天生自然HTML学习笔记:HTML 表单和输入

    HTML 表单用于收集不同类型的用户输入。
    <!DOCTYPE html>
    <html>
    <head> 
    <meta charset="utf-8"> 
    <title>菜鸟教程(runoob.com)</title> 
    </head>
    <body>
    
    <form action="">
    First name: <input type="text" name="firstname"><br>
    Last name: <input type="text" name="lastname">
    </form>
    
    <p><b>注意:</b> 表单本身是不可见的。并且注意一个文本字段的默认宽度是20个字符。</p>
    
    </body>
    </html>

    <!DOCTYPE html>
    <html>
    <head> 
    <meta charset="utf-8"> 
    <title>菜鸟教程(runoob.com)</title> 
    </head>
    <body>
    
    <form action="">
    Username: <input type="text" name="user"><br>
    Password: <input type="password" name="password">
    </form>
    
    <p><b>注意:</b> 密码字段中的字符是隐藏的(显示为星号或圆圈)。</p>
    
    </body>
    </html>

    HTML 表单
    表单是一个包含表单元素的区域。
    
    表单元素是允许用户在表单中输入内容,比如:文本域(textarea)、下拉列表、单选框(radio-buttons)、复选框(checkboxes)等等。
    
    表单使用表单标签 <form> 来设置:
    
    <form>
    .
    input 元素
    .
    </form>
    HTML 表单 - 输入元素
    多数情况下被用到的表单标签是输入标签(<input>)。
    
    输入类型是由类型属性(type)定义的。大多数经常被用到的输入类型如下:
    
    文本域(Text Fields)
    文本域通过<input type="text"> 标签来设定,当用户要在表单中键入字母、数字等内容时,就会用到文本域。
    
    <form>
    First name: <input type="text" name="firstname"><br>
    Last name: <input type="text" name="lastname">
    </form>
    密码字段
    密码字段通过标签<input type="password"> 来定义:
    
    <form>
    Password: <input type="password" name="pwd">
    </form>
    单选按钮(Radio Buttons)
    <input type="radio"> 标签定义了表单单选框选项
    
    <form>
    <input type="radio" name="sex" value="male">Male<br>
    <input type="radio" name="sex" value="female">Female
    </form>
    复选框(Checkboxes)
    <input type="checkbox"> 定义了复选框. 用户需要从若干给定的选择中选取一个或若干选项。
    
    <form>
    <input type="checkbox" name="vehicle" value="Bike">I have a bike<br>
    <input type="checkbox" name="vehicle" value="Car">I have a car
    </form>
    提交按钮(Submit Button)
    <input type="submit"> 定义了提交按钮.
    
    当用户单击确认按钮时,表单的内容会被传送到另一个文件。表单的动作属性定义了目的文件的文件名。由动作属性定义的这个文件通常会对接收到的输入数据进行相关的处理。:
    
    <form name="input" action="html_form_action.php" method="get">
    Username: <input type="text" name="user">
    <input type="submit" value="Submit">
    </form>
    <!DOCTYPE html>
    <html>
    <head> 
    <meta charset="utf-8"> 
    <title>菜鸟教程(runoob.com)</title> 
    </head>
    <body>
    
    <form action="">
    <select name="cars">
    <option value="volvo">Volvo</option>
    <option value="saab">Saab</option>
    <option value="fiat">Fiat</option>
    <option value="audi">Audi</option>
    </select>
    </form>
    
    </body>
    </html>
    <!DOCTYPE html>
    <html>
    <head> 
    <meta charset="utf-8"> 
    <title>菜鸟教程(runoob.com)</title> 
    </head>
    <body>
    
    <form action="">
    <select name="cars">
    <option value="volvo">Volvo</option>
    <option value="saab">Saab</option>
    <option value="fiat" selected>Fiat</option>
    <option value="audi">Audi</option>
    </select>
    </form>
    
    </body>
    </html>
    <!DOCTYPE html>
    <html>
    <head> 
    <meta charset="utf-8"> 
    <title>菜鸟教程(runoob.com)</title> 
    </head>
    <body>
    
    <textarea rows="10" cols="30">
    我是一个文本框。
    </textarea>
    
    </body>
    </html>

    <!DOCTYPE html>
    <html>
    <head> 
    <meta charset="utf-8"> 
    <title>菜鸟教程(runoob.com)</title> 
    </head>
    <body>
    
    <form action="">
    <input type="button" value="Hello world!">
    </form>
    
    </body>
    </html>

    <!DOCTYPE html>
    <html>
    <head> 
    <meta charset="utf-8"> 
    <title>菜鸟教程(runoob.com)</title> 
    </head>
    <body>
    
    <form action="">
    <fieldset>
    <legend>Personal information:</legend>
    Name: <input type="text" size="30"><br>
    E-mail: <input type="text" size="30"><br>
    Date of birth: <input type="text" size="10">
    </fieldset>
    </form>
    
    </body>
    </html>

    <!DOCTYPE html>
    <html>
    <head> 
    <meta charset="utf-8"> 
    <title>菜鸟教程(runoob.com)</title> 
    </head>
    <body>
    
    <form action="demo-form.php">
    First name: <input type="text" name="FirstName" value="Mickey"><br>
    Last name: <input type="text" name="LastName" value="Mouse"><br>
    <input type="submit" value="提交">
    </form>
    
    <p>点击"提交"按钮,表单数据将被发送到服务器上的“demo-form.php”。</p>
    
    </body>
    </html>

    <!DOCTYPE html>
    <html>
    <head> 
    <meta charset="utf-8"> 
    <title>菜鸟教程(runoob.com)</title> 
    </head>
    <body>
    
    <form action="demo-form.php" method="get">
      <input type="checkbox" name="vehicle[]" value="Bike"> I have a bike<br>
      <input type="checkbox" name="vehicle[]" value="Car" checked="checked"> I have a car<br>
      <input type="submit" value="提交">
    </form>
    
    </body>
    </html>

    <!DOCTYPE html>
    <html>
    <head> 
    <meta charset="utf-8"> 
    <title>菜鸟教程(runoob.com)</title> 
    </head>
    <body>
    
    <h3>发送邮件到 someone@example.com:</h3>
    
    <form action="MAILTO:someone@example.com" method="post" enctype="text/plain">
    Name:<br>
    <input type="text" name="name" value="your name"><br>
    E-mail:<br>
    <input type="text" name="mail" value="your email"><br>
    Comment:<br>
    <input type="text" name="comment" value="your comment" size="50"><br><br>
    <input type="submit" value="发送">
    <input type="reset" value="重置">
    </form>
    
    </body>
    </html>

    <!DOCTYPE html>
    <html>
    <head> 
    <meta charset="utf-8"> 
    <title>菜鸟教程(runoob.com)</title> 
    </head>
    <body>
    
    <p>点击其中一个文本标签选中选项:</p>
    
    <form action="demo_form.php">
      <label for="male">Male</label>
      <input type="radio" name="sex" id="male" value="male"><br>
      <label for="female">Female</label>
      <input type="radio" name="sex" id="female" value="female"><br><br>
      <input type="submit" value="提交">
    </form>
    
    </body>
    </html>

    <!DOCTYPE html>
    <html>
    <head> 
    <meta charset="utf-8"> 
    <title>菜鸟教程(runoob.com)</title> 
    </head>
    <body>
    
    <select>
      <optgroup label="Swedish Cars">
        <option value="volvo">Volvo</option>
        <option value="saab">Saab</option>
      </optgroup>
      <optgroup label="German Cars">
        <option value="mercedes">Mercedes</option>
        <option value="audi">Audi</option>
      </optgroup>
    </select>
     
    </body>
    </html>
    <!DOCTYPE html>
    <html>
    <head> 
    <meta charset="utf-8"> 
    <title>菜鸟教程(runoob.com)</title> 
    </head>
    <body>
        
    <form action="demo-form.php" method="get">
    <input list="browsers" name="browser">
    <datalist id="browsers">
      <option value="Internet Explorer">
      <option value="Firefox">
      <option value="Chrome">
      <option value="Opera">
      <option value="Safari">
    </datalist>
    <input type="submit">
    </form>
    
    <p><strong>注意:</strong> Internet Explorer 9(更早 IE 版本),Safari 不支持 datalist 标签。</p>
    
    </body>
    </html>
    <!DOCTYPE html>
    <html>
    <head> 
    <meta charset="utf-8"> 
    <title>菜鸟教程(runoob.com)</title> 
    </head>
    <body>
    
    <form oninput="x.value=parseInt(a.value)+parseInt(b.value)">0
    <input type="range" id="a" value="50">100
    +<input type="number" id="b" value="50">
    =<output name="x" for="a b"></output>
    </form>
    
    <p><strong>注意:</strong>  Internet Explorer 不支持 output 标签。</p>
    
    </body>
    </html>

     

  • 相关阅读:
    241. Different Ways to Add Parentheses java solutions
    89. Gray Code java solutions
    367. Valid Perfect Square java solutions
    46. Permutations java solutions
    116. Populating Next Right Pointers in Each Node java solutions
    153. Find Minimum in Rotated Sorted Array java solutions
    判断两颗树是否相同
    求二叉树叶子节点的个数
    求二叉树第k层的结点个数
    将二叉排序树转换成排序的双向链表
  • 原文地址:https://www.cnblogs.com/tszr/p/11997167.html
Copyright © 2011-2022 走看看