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 /**
  * °´Ö¸¶¨ÈÕÆÚµ¥Î»¼ÆËãÁ½¸öÈÕÆÚ¼äµÄ¼ä¸ô
  *
  * @param timeInterval
  * @param date1
  * @param date2
  * @return
  */
 public static long dateDiff(String timeInterval, Date date1, Date date2) {
  if (timeInterval.equals("year")) {
   Calendar calendar = Calendar.getInstance();
   calendar.setTime(date1);
   int time = calendar.get(Calendar.YEAR);
   calendar.setTime(date2);
   return time - calendar.get(Calendar.YEAR);
  }
  if (timeInterval.equals("quarter")) {
   Calendar calendar = Calendar.getInstance();
   calendar.setTime(date1);
   int time = calendar.get(Calendar.YEAR) * 4;
   calendar.setTime(date2);
   time -= calendar.get(Calendar.YEAR) * 4;
   calendar.setTime(date1);
   time += calendar.get(Calendar.MONTH) / 4;
   calendar.setTime(date2);
   return time - calendar.get(Calendar.MONTH) / 4;
  }
  if (timeInterval.equals("month")) {
   Calendar calendar = Calendar.getInstance();
   calendar.setTime(date1);
   int time = calendar.get(Calendar.YEAR) * 12;
   calendar.setTime(date2);
   time -= calendar.get(Calendar.YEAR) * 12;
   calendar.setTime(date1);
   time += calendar.get(Calendar.MONT


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