当前日期的显示为农历

1.js代码

  <script>
  function CalConv()
 {
    FIRSTYEAR = 1998;
    LASTYEAR = 2031;

    today = new Date();
    SolarYear = today.getFullYear();
    SolarMonth = today.getMonth() + 1;
    SolarDate = today.getDate();
    Weekday = today.getDay();
    LunarCal = [
 new tagLunarCal( 27, 5, 3, 43, 1, 0, 0, 1, 0, 0, 1, 1, 0, 1, 1, 0, 1 ),
 new tagLunarCal( 46, 0, 4, 48, 1, 0, 0, 1, 0, 0, 1, 0, 1, 1, 1, 0, 1 ), /* 88 */
 new tagLunarCal( 35, 0, 5, 53, 1, 1, 0, 0, 1, 0, 0, 1, 0, 1, 1, 0, 1 ), /* 89 */
 new tagLunarCal( 23, 4, 0, 59, 1, 1, 0, 1, 0, 1, 0, 0, 1, 0, 1, 0, 1 ),
 new tagLunarCal( 42, 0, 1, 4, 1, 1, 0, 1, 0, 1, 0, 0, 1, 0, 1, 0, 1 ),
 new tagLunarCal( 31, 0, 2, 9, 1, 1, 0, 1, 1, 0, 1, 0, 0, 1, 0, 1, 0 ),
 new tagLunarCal( 21, 2, 3, 14, 0, 1, 0, 1, 1, 0, 1, 0, 1, 0, 1, 0, 1 ), /* 93 */
 new tagLunarCal( 39, 0, 5, 20, 0, 1, 0, 1, 0, 1, 1, 0, 1, 0, 1, 0, 1 ),
 new tagLunarCal( 28, 7, 6, 25, 1, 0, 1, 0, 1, 0, 1, 0, 1, 1, 0, 1, 1 ),
 new tagLunarCal( 48, 0, 0, 30, 0, 0, 1, 0, 0, 1, 0, 1, 1, 1, 0, 1, 1 ),
 new tagLunarCal( 37, 0, 1, 35, 1, 0, 0, 1, 0, 0, 1, 0, 1, 1, 0, 1, 1 ), /* 97 */
 new tagLunarCal( 25, 5, 3, 41, 1, 1, 0, 0, 1, 0, 0, 1, 0, 1, 0, 1, 1 ),
 new tagLunarCal( 44, 0, 4, 46, 1, 0, 1, 0, 1, 0, 0, 1, 0, 1, 0, 1, 1 ),
 new tagLunarCal( 33, 0, 5, 51, 1, 0, 1, 1, 0, 1, 0, 0, 1, 0, 1, 0, 1 ),
 new tagLunarCal( 22, 4, 6, 56, 1, 0, 1, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0 ), /* 101 */
 new tagLunarCal( 40, 0, 1, 2, 1, 0, 1, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0 ),
 new tagLunarCal( 30, 9, 2, 7, 0, 1, 0, 1, 0, 1, 0, 1, 1, 0, 1, 0, 1 ),
 new tagLunarCal( 49, 0, 3, 12, 0, 1, 0, 0, 1, 0, 1, 1, 1, 0, 1, 0, 1 ),
 new tagLunarCal( 38, 0, 4, 17, 1, 0, 1, 0, 0, 1, 0, 1, 1, 0, 1, 1, 0 ), /* 105 */
 new tagLunarCal( 27, 6, 6, 23, 0, 1, 0, 1, 0, 0, 1, 0, 1, 0, 1, 1, 1 ),
 new tagLunarCal( 46, 0, 0, 28, 0, 1, 0, 1, 0, 0, 1, 0, 1, 0, 1, 1, 0 ),
 new tagLunarCal( 35, 0, 1, 33, 0, 1, 1, 0, 1, 0, 0, 1, 0, 0, 1, 1, 0 ),
 new tagLunarCal( 24, 4, 2, 38, 0, 1, 1, 1, 0, 1, 0, 0, 1, 0, 1, 0, 1 ), /* 109 */
 new tagLunarCal( 42, 0, 4, 44, 0, 1, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1 ),
 new tagLunarCal( 31, 0, 5, 49, 1, 0, 1, 0, 1, 1, 0, 1, 0, 1, 0, 1, 0 ),
 new tagLunarCal( 21, 2, 6, 54, 0, 1, 0, 1, 0, 1, 0, 1, 1, 0, 1, 0, 1 ),
 new tagLunarCal( 40, 0, 0, 59, 0, 1, 0, 0, 1, 0, 1, 1, 0, 1, 1, 0, 1 ), /* 113 */
 new tagLunarCal( 28, 6, 2, 5, 1, 0, 1, 0, 0, 1, 0, 1, 0, 1, 1, 1, 0 ),
 new tagLunarCal( 47, 0, 3, 10, 1, 0, 1, 0, 0, 1, 0, 0, 1, 1, 1, 0, 1 ),
 new tagLunarCal( 36, 0, 4, 15, 1, 1, 0, 1, 0, 0, 1, 0, 0, 1, 1, 0, 1 ),
 new tagLunarCal( 25, 5, 5, 20, 1, 1, 1, 0, 1, 0, 0, 1, 0, 0, 1, 1, 0 ), /* 117 */
 new tagLunarCal( 43, 0, 0, 26, 1, 1, 0, 1, 0, 1, 0, 1, 0, 0, 1, 0, 1 ),
 new tagLunarCal( 32, 0, 1, 31, 1, 1, 0, 1, 1, 0, 1, 0, 1, 0, 1, 0, 0 ),
 new tagLunarCal( 22, 3, 2, 36, 0, 1, 1, 0, 1, 0, 1, 1, 0, 1, 0, 1, 0 ) ];
 /* 民国年月日 Codes by / */
 SolarCal = [ 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 ];
SolarDays = [ 0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334, 365, 396, 0, 31, 60, 91, 121, 152, 182, 213, 244, 274, 305, 335, 366, 397 ];
    
    
    if ( SolarYear <= FIRSTYEAR || SolarYear > LASTYEAR ) return 1;
    sm = SolarMonth - 1;
        if ( sm < 0 || sm > 11 ) return 2;
        leap = GetLeap( SolarYear );
    if ( sm == 1 )
        d = leap + 28;
    else
        d = SolarCal[sm];
    if ( SolarDate < 1 || SolarDate > d ) return 3;
    y = SolarYear - FIRSTYEAR;
    acc = SolarDays[ leap*14 + sm ] + SolarDate;
    kc = acc + LunarCal[y].BaseKanChih;
    Kan = kc % 10;
    Chih = kc % 12;
    
    Age = kc % 60;
    if ( Age < 22 )
        Age = 22 - Age;
    else
        Age = 82 - Age;
    
    if ( acc <= LunarCal[y].BaseDays ) {
        y--;
        LunarYear = SolarYear - 1;
        leap = GetLeap( LunarYear );
        sm += 12;
        acc = SolarDays[leap*14 + sm] + SolarDate;
     }
    else
        LunarYear = SolarYear;
            l1 = LunarCal[y].BaseDays;
    for ( i=0; i<13; i++ ) {
        l2 = l1 + LunarCal[y].MonthDays[i] + 29;
        if ( acc <= l2 ) break;
        l1 = l2;
     }
    LunarMonth = i + 1;
    LunarDate = acc - l1;
    im = LunarCal[y].Intercalation;
    if ( im != 0 && LunarMonth > im ) {
        LunarMonth--;
        if ( LunarMonth == im ) LunarMonth = -im;
     }
    if ( LunarMonth > 12 ) LunarMonth -= 12;
 today=new Date();
 function initArray(){
 this.length=initArray.arguments.length
 for(var i=0;i<this.length;i++)
 this[i+1]=initArray.arguments[i] }
 var d=new initArray("星期日","星期一","星期二","星期三","星期四","星期五","星期六");
 document.write("", today.getYear(),"年",today.getMonth()+1,"月",today.getDate(),"日&nbsp;",d[today.getDay()+1],"");
 
 months = ["一","二","三","四","五","六","七","八","九","十","十一","十二"];
 
 days = ["初一","初二","初三","初四","初五","初六","初七","初八","初九","初十","十一","十二","十三","十四","十五","十六","十七","十八","十九","二十","廿一","廿二","廿三","廿四","廿五","廿六","廿七","廿八","廿九","三十"];
 document.write( "&nbsp;农历"+months[LunarMonth-1]+"月" + days[LunarDate-1] + "");
 return 0;
}
 /* 是否有闰年, 0 平年, 1 闰年 */
function GetLeap( year )
 {
 if ( year % 400 == 0 )
 return 1;
 else if ( year % 100 == 0 )
 return 0;
 else if ( year % 4 == 0 )
 return 1;
 else
 return 0;
 }
function tagLunarCal( d, i, w, k, m1, m2, m3, m4, m5, m6, m7, m8, m9, m10, m11, m12, m13) {
 this.BaseDays = d;
 this.Intercalation = i; /* 0代表此年沒有闰月 */
 this.BaseWeekday = w; /* 民国1月1日星期減 1 */
 this.BaseKanChih = k; /* 民国1月1日干支序号减 1 */
 this.MonthDays = [ m1, m2, m3, m4, m5, m6, m7, m8, m9, m10, m11, m12, m13 ]; /* 此農曆年每月之大小, 0==小月(29日), 1==大月(30日) */
}

document.write(CalConv());
  </script>