_root.onEnterFrame = function() {
  var mydate = new Date();
  setProperty(" shizhen ", _rotation, mydate.getHours()*30+mydate.getMinutes()*0.5);
  setProperty(" fenzhen ", _rotation, mydate.getMinutes()*6);
  setProperty(" miaozhen ", _rotation, mydate.getSeconds()*6);
  };