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A detailed introduction to form components in HTML

黄舟
黄舟Original
2017-05-27 14:26:151362browse

HTMLForm component

1. Description

for Things in the m tag

2. Rendering

3. Code

<!DOCTYPE html>
<html>
<head>
<title>Form.html</title>

<meta name="keywords" content="keyword1,keyword2,keyword3">
<meta name="description" content="this is my page">
<meta name="content-type" content="text/html; charset=UTF-8">

<!--<link rel="stylesheet" type="text/css" href="./styles.css">-->

</head>

<body>
    This is my HTML page.
    <br>
    <form action="">
        <!-- 必须要有name和value属性，不然服务器无法获取数据，name是组件的名字，
        name是提交服务器是服务对这个数据的键值，value是这个组件的值 
        -->
        输入名称：<input type="text" name="user" value=""><br />
        输入密码：<input type="password" name="pwd" /><br />
        <!-- checked是默认选择，默认选择女，用户少点一步，很方便，后面还有selected也是默认选择的意思 -->
        选择性别：<input type="radio" name="sex" value="nan"  />男
                  <input type="radio" name="sex" value="nv" checked="checked" />女<br />
        选择技术：<input type="checkbox" name="tech" value="java" />JAVA
                  <input type="checkbox" name="tech" value="html" />HTML
                  <input type="checkbox" name="tech" value="css" />CSS <br />
        <!-- 选择文件这个功能特别方便 -->
        选择文件：<input type="file" name="file" /><br />
        <!-- 图片组件，拥有提交功能 ，在我们需要用自制的提交按钮时用，毕竟默认的太丑 -->
        一个图案：<input type="image"  src="11.jpg"/><br />
        <!-- 隐藏组件，数据用户不需要知道，但是可以将其提交到服务器，比如你算出来的数据 -->
        隐藏组件：<input type="hidden" name="myke" value="nyvalue"/> <br />
        <!-- 用于自定义功能的按钮组件,onclick="alert(&#39;有个按钮&#39;)",单双引号嵌套，alert弹出对话框 -->
        一个按钮：<input type="button" value="有个按钮" onclick="alert(&#39;有个按钮&#39;)" /><br />
        
        <!-- 上面是input组件，里面有10个属性，下面看select属性 -->
        <select name="country">
            <option value="none" >--选择国家--</option>
            <option value="usa" >美国</option>
            <option value="en" >英国</option>
            <option value="cn" >中国</option>
            
        </select>
        <br />
        <!-- textarea属性，比如说写个人简介的时候，贼好用 -->
        <textarea rows="" cols="" name="text"></textarea>

        <br />
        <input type="reset" value="清除数据" /><br />
        <input type="submit" value="提交数据"/><br />
    </form>
</body>
</html>

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