// 返回农历iLunarYer年iLunarMonth月的天数,结果是一个长整数 // 如果iLunarMonth不是闰月, 高字为0,低字为该月的天数 // 如果iLunarMonth是闰月, 高字为后一个月的天数,低字为前一个月的天数 function LunarMonthDays(iLunarYear, iLunarMonth) { var High; var Low; var Bit;
High = 0; Low = 29; Bit = 16 - iLunarMonth; if ((iLunarMonth > GetLeapMonth(iLunarYear)) && (GetLeapMonth(iLunarYear) > 0)) Bit--; if ((LunarDaysOfMonth[iLunarYear - 2001] & (1 << Bit)) > 0) Low++; if (iLunarMonth == GetLeapMonth(iLunarYear)) { High = ((LunarDaysOfMonth[iLunarYear - 2001] & (1 << (Bit-1))) > 0) ? 30 : 29; }
return Low + (High << 16); }
// 返回农历iLunarYear年的总天数 function LunarYearDays(iLunarYear) { var Days; var tmp;
Days = 0; for (var i=1; i <= 12; i++) { tmp = LunarMonthDays(iLunarYear, i); Days = Days + ((tmp >> 16) & 0xffff); //取高位 Days = Days + (tmp & 0xffff); //取低位 }
return Days; }
// 将农历iLunarYear年格式化成天干地支记年法表示的字符串 function FormatLunarYear(iLunarYear) { var szText1 = new String("甲乙丙丁戊己庚辛壬癸"); var szText2 = new String("子丑寅卯辰巳午未申酉戌亥"); var strYear;
// 将农历iLunarDay日格式化成农历表示的字符串 function FormatLunarDay(iLunarDay) { var szText1 = new String("初十廿三"); var szText2 = new String("一二三四五六七八九十"); var strDay; if ((iLunarDay != 20) && (iLunarDay != 30)) { strDay = szText1.substr((iLunarDay - 1) / 10, 1) + szText2.substr((iLunarDay - 1) % 10, 1); } else if (iLunarDay != 20) { strDay = szText1.substr(iLunarDay / 10, 1) + "十"; } else { strDay = "二十"; }
return strDay; }
// 将公历日期转换为农历日期,返回农历表示的字符串 function GetLunarDateString(SolarDate) { var tmp; var iLunarYear; var iLunarMonth; var iLunarDay; var Leap = false; var MinMilli = 1000 * 60; var HrMilli = MinMilli * 60; var DyMilli = HrMilli * 24;
var today= new Date(); // 今天是2004-3-5 var str = GetLunarDateString(today);
结果是 “甲申年二月十五”。
再举两个例子:
var date1 = new Date(2008, 9, 1); // 2008-10-1 var date2 = new Date(2050, 4, 18); // 2050-5-18 var str1 = GetLunarDateString(date1); var str2 = GetLunarDateString(date2);