<form action="3.html">
email:<input type="email" name="email" required="">
网址<input type="url" required="">
输入手机号码：<input type="tel" required="">
<input type="number" required="" max="3" min="-3" step="1" >
<input type="range" min="0" max="100" value="10" name="rr">
time:<input type="time" required=""><br>
date: <input type="date">
week: <input type="week">
month: <input type="month">
localtime: <input type="datetime-local">
颜色选择： <input type="color">
<input type="search" required="" placeholder="请输入搜索关键词">
<input type="file" accept="jpg" multiple="multiple">
<input type="submit" value="上传">
</form>