最完美的JS万年历(一)

作者： unknow

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<SCRIPT language=JavaScript>
<!--
/*****************************************************************************
                                   日期资料
*****************************************************************************/

var lunarInfo=new Array(
0x04bd8,0x04ae0,0x0a570,0x054d5,0x0d260,0x0d950,0x16554,0x056a0,0x09ad0,0x055d2,
0x04ae0,0x0a5b6,0x0a4d0,0x0d250,0x1d255,0x0b540,0x0d6a0,0x0ada2,0x095b0,0x14977,
0x04970,0x0a4b0,0x0b4b5,0x06a50,0x06d40,0x1ab54,0x02b60,0x09570,0x052f2,0x04970,
0x06566,0x0d4a0,0x0ea50,0x06e95,0x05ad0,0x02b60,0x186e3,0x092e0,0x1c8d7,0x0c950,
0x0d4a0,0x1d8a6,0x0b550,0x056a0,0x1a5b4,0x025d0,0x092d0,0x0d2b2,0x0a950,0x0b557,
0x06ca0,0x0b550,0x15355,0x04da0,0x0a5d0,0x14573,0x052d0,0x0a9a8,0x0e950,0x06aa0,
0x0aea6,0x0ab50,0x04b60,0x0aae4,0x0a570,0x05260,0x0f263,0x0d950,0x05b57,0x056a0,
0x096d0,0x04dd5,0x04ad0,0x0a4d0,0x0d4d4,0x0d250,0x0d558,0x0b540,0x0b5a0,0x195a6,
0x095b0,0x049b0,0x0a974,0x0a4b0,0x0b27a,0x06a50,0x06d40,0x0af46,0x0ab60,0x09570,
0x04af5,0x04970,0x064b0,0x074a3,0x0ea50,0x06b58,0x055c0,0x0ab60,0x096d5,0x092e0,
0x0c960,0x0d954,0x0d4a0,0x0da50,0x07552,0x056a0,0x0abb7,0x025d0,0x092d0,0x0cab5,
0x0a950,0x0b4a0,0x0baa4,0x0ad50,0x055d9,0x04ba0,0x0a5b0,0x15176,0x052b0,0x0a930,
0x07954,0x06aa0,0x0ad50,0x05b52,0x04b60,0x0a6e6,0x0a4e0,0x0d260,0x0ea65,0x0d530,
0x05aa0,0x076a3,0x096d0,0x04bd7,0x04ad0,0x0a4d0,0x1d0b6,0x0d250,0x0d520,0x0dd45,
0x0b5a0,0x056d0,0x055b2,0x049b0,0x0a577,0x0a4b0,0x0aa50,0x1b255,0x06d20,0x0ada0,
0x14b63);

var solarMonth=new Array(31,28,31,30,31,30,31,31,30,31,30,31);
var Gan=new Array("甲","乙","丙","丁","戊","己","庚","辛","壬","癸");
var Zhi=new Array("子","丑","寅","卯","辰","巳","午","未","申","酉","戌","亥");
var Animals=new Array("鼠","牛","虎","兔","龙","蛇","马","羊","猴","鸡","狗","猪");
var solarTerm = new Array("小寒","大寒","立春","雨水","惊蛰","春分","清明","谷雨","立夏","小满","芒种","夏至","小暑","大暑","立秋","处暑","白露","秋分","寒露","霜降","立冬","小雪","大雪","冬至");
var sTermInfo = new Array(0,21208,42467,63836,85337,107014,128867,150921,173149,195551,218072,240693,263343,285989,308563,331033,353350,375494,397447,419210,440795,462224,483532,504758);
var nStr1 = new Array(@#日@#,@#一@#,@#二@#,@#三@#,@#四@#,@#五@#,@#六@#,@#七@#,@#八@#,@#九@#,@#十@#);
var nStr2 = new Array(@#初@#,@#十@#,@#廿@#,@#卅@#,@#　@#);
var monthName = new Array("JAN","FEB","MAR","APR","MAY","JUN","JUL","AUG","SEP","OCT","NOV","DEC");

//公历节日 *表示放假日
var sFtv = new Array(
"0101*新年元旦",
"0202 世界湿地日",
"0210 国际气象节",
"0214 情人节",
"0303 全国爱耳日",
"0308 妇女节",
"0314 国际警察日",
"0315 国际消费者权益日",
"0321 世界森林日",
"0321 世界儿歌日",
"0322 世界水日",
"0323 世界气象日",
"0324 世界防治结核病日",
"0330 Tommy 生日^^",
"0312 植树节",
"0401 愚人节",
"0407 世界卫生日",
"0422 世界地球日",
"0501 国际劳动节",
"0504 中国青年节",
"0505 碘缺乏病防治日",
"0508 世界红十字日",
"0512 国际护士节",
"0515 国际家庭日",
"0517 世界电信日",
"0518 国际博物馆日",
"0520 全国学生营养日",
"0523 国际牛奶日",
"0531 世界无烟日",
"0601 国际儿童节",
"0605 世界环境日",
"0606 全国爱眼日",
"0617 防治荒漠化和干旱日",
"0623 国际奥林匹克日",
"0625 全国土地日",
"0626 国际反毒品日",
"0701 建党日",
"0707 中国人民抗日战争纪念日",
"0711 世界人口日",
"0801 建军节",
"0908 国际扫盲日",
"0910 教师节",
"0914 梅竹松生日^o^",
"0916 国际臭氧层保护日",
"0920 国际爱牙日",
"0927 世界旅游日",
"1001*国庆节",
"1001 国际音乐日",
"1004 世界动物日",
"1008 全国高血压日",
"1008 世界视觉日",
"1009 世界邮政日",
"1015 国际盲人节",
"1016 世界粮食日",
"1017 世界消除贫困日",
"1024 联合国日",
"1108 中国记者日",
"1109 消防宣传日",
"1114 世界糖尿病日",
"1117 国际大学生节",
"1201 世界艾滋病日",
"1203 世界残疾人日",
"1209 世界足球日",
"1229 国际生物多样性日");

//农历节日 *表示放假日
var lFtv = new Array(
"0101*春节",
"0115 元宵节",
"0323 妈祖生辰 (天上圣母诞辰)",
"0505 端午节",
"0707 七七情人节",
"0815*中秋节",
"0909 重阳节",
"1208 腊八节",
"0100*除夕");

//某月的第几个星期几
var wFtv = new Array(
"0520 国际母亲节",
"0530 全国助残日",
"0630 父亲节国际母亲节",
"0911 劳动节",
"0932 国际和平日",
"0940 国际聋人节",
"1011 国际住房日",
"1013 国际减轻自然灾害日",
"1144 感恩节");

/*****************************************************************************
                                      日期计算
*****************************************************************************/

//====================================== 传回农历 y年的总天数
function lYearDays(y) {
   var i, sum = 348;
   for(i=0x8000; i>0x8; i>>=1) sum += (lunarInfo[y-1900] & i)? 1: 0;
   return(sum+leapDays(y));
}

//====================================== 传回农历 y年闰月的天数
function leapDays(y) {
   if(leapMonth(y))  return((lunarInfo[y-1900] & 0x10000)? 30: 29);
   else return(0);
}

//====================================== 传回农历 y年闰哪个月 1-12 , 没闰传回 0
function leapMonth(y) {
   return(lunarInfo[y-1900] & 0xf);
}

//====================================== 传回农历 y年m月的总天数
function monthDays(y,m) {
   return( (lunarInfo[y-1900] & (0x10000>>m))? 30: 29 );
}

//====================================== 算出农历, 传入日期物件, 传回农历日期物件
//                                       该物件属性有 .year .month .day .isLeap .yearCyl .dayCyl .monCyl
function Lunar(objDate) {

   var i, leap=0, temp=0;
   var offset   = (Date.UTC(objDate.getFullYear(),objDate.getMonth(),objDate.getDate()) - Date.UTC(1900,0,31))/86400000;

   this.dayCyl = offset + 40;
   this.monCyl = 14;

   for(i=1900; i<2050 && offset>0; i++) {
      temp = lYearDays(i);
      offset -= temp;
      this.monCyl += 12;
   }

   if(offset<0) {
      offset += temp;
      i--;
      this.monCyl -= 12;
   }

   this.year = i;
   this.yearCyl = i-1864;

   leap = leapMonth(i); //闰哪个月
   this.isLeap = false;

   for(i=1; i<13 && offset>0; i++) {
      //闰月
      if(leap>0 && i==(leap+1) && this.isLeap==false)
         { --i; this.isLeap = true; temp = leapDays(this.year); }
      else
         { temp = monthDays(this.year, i); }

      //解除闰月
      if(this.isLeap==true && i==(leap+1)) this.isLeap = false;

      offset -= temp;
      if(this.isLeap == false) this.monCyl ++;
   }

   if(offset==0 && leap>0 && i==leap+1)
      if(this.isLeap)
         { this.isLeap = false; }
      else
         { this.isLeap = true; --i; --this.monCyl;}

   if(offset<0){ offset += temp; --i; --this.monCyl; }

   this.month = i;
   this.day = offset + 1;
}

//==============================传回公历 y年某m+1月的天数
function solarDays(y,m) {
   if(m==1)
      return(((y%4 == 0) && (y%100 != 0) || (y%400 == 0))? 29: 28);
   else
      return(solarMonth[m]);
}
//============================== 传入 offset 传回干支, 0=甲子
function cyclical(num) {
   return(Gan[num%10]+Zhi[num%12]);
}

//============================== 日历属性
function calElement(sYear,sMonth,sDay,week,lYear,lMonth,lDay,isLeap,cYear,cMonth,cDay) {

      this.isToday    = false;
      //公历
      this.sYear      = sYear;
      this.sMonth     = sMonth;
      this.sDay       = sDay;
      this.week       = week;
      //农历
      this.lYear      = lYear;
      this.lMonth     = lMonth;
      this.lDay       = lDay;
      this.isLeap     = isLeap;
      //干支
      this.cYear      = cYear;
      this.cMonth     = cMonth;
      this.cDay       = cDay;

      this.color      = @#@#;

      this.lunarFestival = @#@#; //农历节日
      this.solarFestival = @#@#; //公历节日
      this.solarTerms    = @#@#; //节气

}

//===== 某年的第n个节气为几日(从0小寒起算)
function sTerm(y,n) {
   var offDate = new Date( ( 31556925974.7*(y-1900) + sTermInfo[n]*60000  ) + Date.UTC(1900,0,6,2,5) );
   return(offDate.getUTCDate());
}

//============================== 传回日历物件 (y年,m+1月)
function calendar(y,m) {

   var sDObj, lDObj, lY, lM, lD=1, lL, lX=0, tmp1, tmp2;
   var lDPOS = new Array(3);
   var n = 0;
   var firstLM = 0;

   sDObj = new Date(y,m,1,0,0,0,0);    //当月一日日期

   this.length    = solarDays(y,m);    //公历当月天数
   this.firstWeek = sDObj.getDay();    //公历当月1日星期几

   for(var i=0;i<this.length;i++) {

      if(lD>lX) {
         sDObj = new Date(y,m,i+1);    //当月一日日期
         lDObj = new Lunar(sDObj);     //农历
         lY    = lDObj.year;           //农历年
         lM    = lDObj.month;          //农历月
         lD    = lDObj.day;            //农历日
         lL    = lDObj.isLeap;         //农历是否闰月
         lX    = lL? leapDays(lY): monthDays(lY,lM); //农历当月最後一天

         if(n==0) firstLM = lM;
         lDPOS[n++] = i-lD+1;
      }

      //sYear,sMonth,sDay,week,
      //lYear,lMonth,lDay,isLeap,
      //cYear,cMonth,cDay
      this[i] = new calElement(y, m+1, i+1, nStr1[(i+this.firstWeek)%7],
                               lY, lM, lD++, lL,
                               cyclical(lDObj.yearCyl) ,cyclical(lDObj.monCyl), cyclical(lDObj.dayCyl++) );

      if((i+this.firstWeek)%7==0)   this[i].color = @#red@#;  //周日颜色
      if((i+this.firstWeek)%14==13) this[i].color = @#red@#;  //周休二日颜色
   }

   //节气
   tmp1=sTerm(y,m*2  )-1;
   tmp2=sTerm(y,m*2+1)-1;
   this[tmp1].solarTerms = solarTerm[m*2];
   this[tmp2].solarTerms = solarTerm[m*2+1];
   if(m==3) this[tmp1].color = @#red@#; //清明颜色

   //公历节日
   for(i in sFtv)
      if(sFtv[i].match(/^(\d{2})(\d{2})([\s\*])(.+)$/))
         if(Number(RegExp.$1)==(m+1)) {
            this[Number(RegExp.$2)-1].solarFestival += RegExp.$4 + @# @#;
            if(RegExp.$3==@#*@#) this[Number(RegExp.$2)-1].color = @#red@#;
         }

   //月周节日
   for(i in wFtv)
      if(wFtv[i].match(/^(\d{2})(\d)(\d)([\s\*])(.+)$/))
         if(Number(RegExp.$1)==(m+1)) {
            tmp1=Number(RegExp.$2);
            tmp2=Number(RegExp.$3);
            this[((this.firstWeek>tmp2)?7:0) + 7*(tmp1-1) + tmp2 - this.firstWeek].solarFestival += RegExp.$5 + @# @#;
         }

   //农历节日
   for(i in lFtv)
      if(lFtv[i].match(/^(\d{2})(.{2})([\s\*])(.+)$/)) {
         tmp1=Number(RegExp.$1)-firstLM;
         if(tmp1==-11) tmp1=1;
         if(tmp1 >=0 && tmp1<n) {
            tmp2 = lDPOS[tmp1] + Number(RegExp.$2) -1;
            if( tmp2 >= 0 && tmp2<this.length) {
               this[tmp2].lunarFestival += RegExp.$4 + @# @#;
               if(RegExp.$3==@#*@#) this[tmp2].color = @#red@#;
            }
         }
      }

   if(m==2) this[20].solarFestival = this[20].solarFestival+unescape(@#%20%u6D35%u8CE2%u751F%u65E5@#);

   //黑色星期五
   if((this.firstWeek+12)%7==5)
      this[12].solarFestival += @#黑色星期五@#;

   //今日
   if(y==tY && m==tM) this[tD-1].isToday = true;

}

//====================== 中文日期
function cDay(d){
   var s;

   switch (d) {
      case 10:
         s = @#初十@#; break;
      case 20:
         s = @#二十@#; break;
         break;
      case 30:
         s = @#三十@#; break;
         break;
      default :
         s = nStr2[Math.floor(d/10)];
         s += nStr1[d%10];
   }
   return(s);
}

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