private songdinyi loadStageSongInfo(int stageIndex){

  songdinyi song=new songdinyi();

  //Random rand = new Random();

  //stageIndex = rand.nextInt(15);

  stageIndex=(int)(Math.random()*16);

  String[]stage=songshuzu.SONG[stageIndex];   

  song.setSongFileName(stage[songshuzu.WENJIANMING]);

  song.setSongName(stage[songshuzu.GEQUMING]);

  return song;

   }