1、添加自定義字段：提交時間-->tijiaoshijian
2、在模版<form></form>中添加如下代碼即可
<input name="tijiaoshijian" value="" type="hidden"  id="tijiaoshijian"  />
<script type="text/javascript">
window.onload = function(){
    var nowDate = new Date();
    var str = nowDate.getFullYear()+"-"+(nowDate.getMonth() + 1)+"-"+nowDate.getDate()+" "+nowDate.getHours()+":"+nowDate.getMinutes()+":"+nowDate.getSeconds();
    document.getElementById("tijiaoshijian").value=str;
}
</script>