HTML防止重复提交

1 在你的表单页里HEAD区加入这段代码: 

<META HTTP-EQUIV="pragma" CONTENT="no-cache">
<META HTTP-EQUIV="Cache-Control" CONTENT="no-cache, must-revalidate">
<META HTTP-EQUIV="expires" CONTENT="Wed, 26 Feb 1997 08:21:57 GMT">

2 

<input type="button" value="提交" onclick="this.disabled=true;this.form.submit()">