HNUSOFTCOMEditorForm.document.onkeypress=ax_Enter;
function ax_Enter()
{
if(HNUSOFTCOMEditorForm.event.keyCode==13)
{
  var ax_txt=HNUSOFTCOMEditorForm.document.selection.createRange()  //1
  ax_txt==""?ax_txt.text="\n":(HNUSOFTCOMEditorForm.focus())&(ax_txt.text="\n") //2
  HNUSOFTCOMEditorForm.document.selection.createRange().select() //3
  return false //4
}
}
// 解决编辑器回车换双行<p></p>结束