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/**
  * µÃµ½±¾ÖÜÖÜÒ»
  *
  * @return yyyy-MM-dd
  */
 public static String getMondayOfThisWeek() {
  Calendar c = Calendar.getInstance();
  int day_of_week = c.get(Calendar.DAY_OF_WEEK) - 1;
  if (day_of_week == 0)
   day_of_week = 7;
  c.add(Calendar.DATE, -day_of_week + 1);
  return df2.format(c.getTime());
 }
 /**
  * µÃµ½±¾ÖÜÖÜÈÕ
  *
  * @return yyyy-MM-dd
  */
 public static String getSundayOfThisWeek() {
  Calendar c = Calendar.getInstance();
  int day_of_week = c.get(Calendar.DAY_OF_WEEK) - 1;
  if (day_of_week == 0)
   day_of_week = 7;
  c.add(Calendar.DATE, -day_of_week + 7);
  return df2.format(c.getTime());
 }


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4time.set(Calendar.MONTH,i-1);//×¢Òâ,Calendar¶ÔÏóĬÈÏÒ»ÔÂΪ0
5int day=time.getActualMaximum(Calendar.DAY_OF_MONTH);//±¾Ô·ݵÄÌìÊý
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