中国农历二百年算法及年历程序分析一

      boolean isLeap = false;

      if (year%4==0) isLeap = true;

      if (year%100==0) isLeap = false;

      if (year%400==0) isLeap = true;

      return isLeap;

   }

   public static int daysInGregorianMonth(int y, int m) {

      int d = daysInGregorianMonth[m-1];

      if (m==2 && isGregorianLeapYear(y)) d++; // 公历闰年二月多一天

      return d;

   }

   public static int dayOfYear(int y, int m, int d) {

      int c = 0;

      for (int i=1; i

         c = c + daysInGregorianMonth(y,i);

      }

      c = c + d;