关于表单的提交方式（html5）

<form id="myForm" action="http://www.baidu.com"></form>
<input type="text" form="myForm">
<input type="submit" form="myForm">
指向表单元素


关于email
<form id="myForm" action="http://www.baidu.com"></form>
<input type=email name=email form="myForm">
<input type="submit" form="myForm">

关于url
<form id="myForm" action="http://www.baidu.com"></form>
<input type=url name=url form="myForm">
<input type="submit" form="myForm">

关于时间
<form id="myForm" action="http://www.baidu.com"></form>
<input type=url name=url form="myForm">
<input type="date">
<input type=time>
<input type=month>
<input type=week>
<input type=datetime>
<input type=datetime-local/>
后边两个支持率相当差，不推荐使用

关于number
<input type="number" max=10 min=0 step=2 value="5"/>
关于range
<input type="range" value="100" />
<input type="range" max=10 min=0 step=1 value=5>

关于color
<input type="color" value="#34538b" />
placeholder
<input id=placeholders placeholder="点击我会以清除">

required默认验证规则
<input id=placeholder name=name required form="myForm">
<input id=placeholder name=require1 required="required" form="myForm">
自定义验证
    
<input name=require2 pattern="^[1-9]\d{5}$" form="myForm">

maxLength
<textarea id="notes" name="notes" maxLength="10"></textarea>

关于提示文字
<input id=placeholder name=require1 required="required" oninvalid="setCustomValidity('滚蛋')"  form="myForm">

<input name=require2 pattern="^[1-9]\d{5}$" oninput="setCustomValidity('gun')" form="myForm">


autofocus自动获得焦点
maxLength<textarea id="notes" name="notes" maxLength="10" autofocus="true"></textarea>
自动完成功能，垃圾
<form action="#" method="get" autocomplete="on">
    First name:<input type="text" name="fname" /><br />
    Last name: <input type="text" name="lname" /><br />
    E-mail: <input type="email" name="email" autocomplete="off" /><br />
    <input type="submit" />
</form>

novalidate
<form action="http://www.baidu.com" novalidate="novalidate">
    E-mail: <input type="email" name="user_email" />
    <input type="submit" />
</form>