请问dedecms自定义表单怎么添加发布时间功能

<input type="text" name="shijian" id="shijian" value="">  <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.getElementByIdx_x("shijian").value=str;  } //phpfensi.com  </script>

标签：dedecms自定义表单查询-html自定义表单-dedecms怎么实现模板替换-dedecms怎么改图片-dedecms配置-