有時我們在網頁設計中常常會用到顯示陰歷（農歷）日期，這時可能很多人會想到通過復雜的程序來實現，其實我們完全可以通過JS代碼來實現，下面的JS代碼就是可以實現顯示陰歷（農歷）日期，你可以把下面的代碼復制保存為JS在網頁當中調用就可以了，代碼如下：

function RunGLNL(){
var today=new Date();
var d=new Array("星期日","星期一","星期二","星期三","星期四","星期五","星期六");
var DDDD=(today.getYear()<100 ?
today.getYear()+1900:today.getYear())+"年"+(today.getMonth()+1)+"月"+today.getDate()+"日";
DDDD = DDDD + " " + d[today.getDay()];
DDDD = DDDD+ " " + (CnDateofDateStr(today));
//DDDD = DDDD+ " " + SolarTerm(today);
document.write(DDDD);
}
function DaysNumberofDate(DateGL){
return parseInt((Date.parse(DateGL)-Date.parse(DateGL.getYear()+"/1/1"))/86400000)+1;
}
function CnDateofDate(DateGL){
var CnData=new Array(
0x16,0x2a,0xda,0x00,0x83,0x49,0xb6,0x05,0x0e,0x64,0xbb,0x00,0x19,0xb2,0x5b,0x00,
0x87,0x6a,0x57,0x04,0x12,0x75,0x2b,0x00,0x1d,0xb6,0x95,0x00,0x8a,0xad,0x55,0x02,
0x15,0x55,0xaa,0x00,0x82,0x55,0x6c,0x07,0x0d,0xc9,0x76,0x00,0x17,0x64,0xb7,0x00,
0x86,0xe4,0xae,0x05,0x11,0xea,0x56,0x00,0x1b,0x6d,0x2a,0x00,0x88,0x5a,0xaa,0x04,
0x14,0xad,0x55,0x00,0x81,0xaa,0xd5,0x09,0x0b,0x52,0xea,0x00,0x16,0xa9,0x6d,0x00,
0x84,0xa9,0x5d,0x06,0x0f,0xd4,0xae,0x00,0x1a,0xea,0x4d,0x00,0x87,0xba,0x55,0x04
);
var CnMonth=new Array();
var CnMonthDays=new Array();
var CnBeginDay;
var LeapMonth;
var Bytes=new Array();
var I;
var CnMonthData;
var DaysCount;
var CnDaysCount;
var ResultMonth;
var ResultDay;
var yyyy=DateGL.getYear();
var mm=DateGL.getMonth()+1;
var dd=DateGL.getDate();
if(yyyy<100) yyyy+=1900;
if ((yyyy < 1997) || (yyyy > 2020)){
return 0;
}
Bytes[0] = CnData[(yyyy - 1997) * 4];
Bytes[1] = CnData[(yyyy - 1997) * 4 + 1];
Bytes[2] = CnData[(yyyy - 1997) * 4 + 2];
Bytes[3] = CnData[(yyyy - 1997) * 4 + 3];
if ((Bytes[0] & 0x80) != 0) {CnMonth[0] = 12;}
else {CnMonth[0] = 11;}
CnBeginDay = (Bytes[0] & 0x7f);
CnMonthData = Bytes[1];
CnMonthData = CnMonthData << 8;
CnMonthData = CnMonthData | Bytes[2];
LeapMonth = Bytes[3];
for (I=15;I>=0;I--){
CnMonthDays[15 - I] = 29;
if (((1 << I) & CnMonthData) != 0 ){
CnMonthDays[15 - I]++;}
if (CnMonth[15 - I] == LeapMonth ){
CnMonth[15 - I + 1] = - LeapMonth;}
else{
if (CnMonth[15 - I] < 0 ){CnMonth[15 - I + 1] = - CnMonth[15 - I] + 1;}
else {CnMonth[15 - I + 1] = CnMonth[15 - I] + 1;}
if (CnMonth[15 - I + 1] > 12 ){ CnMonth[15 - I + 1] = 1;}
}
}
DaysCount = DaysNumberofDate(DateGL) - 1;
if (DaysCount <= (CnMonthDays[0] - CnBeginDay)){
if ((yyyy > 1901) && (CnDateofDate(new Date((yyyy - 1)+"/12/31")) < 0)){
ResultMonth = - CnMonth[0];}
else {ResultMonth = CnMonth[0];}
ResultDay = CnBeginDay + DaysCount;
}
else{
CnDaysCount = CnMonthDays[0] - CnBeginDay;
I = 1;
while ((CnDaysCount < DaysCount) && (CnDaysCount + CnMonthDays[I] < DaysCount)){
CnDaysCount+= CnMonthDays[I];
I++;
}
ResultMonth = CnMonth[I];
ResultDay = DaysCount - CnDaysCount;
}
if (ResultMonth > 0){
return ResultMonth * 100 + ResultDay;}
else{return ResultMonth * 100 - ResultDay;}
}
function CnYearofDate(DateGL){
var YYYY=DateGL.getYear();
var MM=DateGL.getMonth()+1;
var CnMM=parseInt(Math.abs(CnDateofDate(DateGL))/100);
if(YYYY<100) YYYY+=1900;
if(CnMM>MM) YYYY--;
YYYY-=1864;
return CnEra(YYYY)+"年";
}
function CnMonthofDate(DateGL){
var CnMonthStr=new Array("零","正","二","三","四","五","六","七","八","九","十","十一","臘");
var Month;
Month = parseInt(CnDateofDate(DateGL)/100);
if (Month < 0){return "閏" + CnMonthStr[-Month] + "月";}
else{return CnMonthStr[Month] + "月";}
}
function CnDayofDate(DateGL){
var CnDayStr=new Array("零",
"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");
var Day;
Day = (Math.abs(CnDateofDate(DateGL)))%100;
return CnDayStr[Day];
}
function DaysNumberofMonth(DateGL){
var MM1=DateGL.getYear();
MM1<100 ? MM1+=1900:MM1;
var MM2=MM1;
MM1+="/"+(DateGL.getMonth()+1);
MM2+="/"+(DateGL.getMonth()+2);
MM1+="/1";
MM2+="/1";
return parseInt((Date.parse(MM2)-Date.parse(MM1))/86400000);
}
function CnEra(YYYY){
var Tiangan=new Array("甲","乙","丙","丁","戊","己","庚","辛","壬","癸");
//var Dizhi=new Array("子(鼠)","丑(牛)","寅(虎)","卯(兔)","辰(龍)","巳(蛇)",
//"午(馬)","未(羊)","申(猴)","酉(雞)","戌(狗)","亥(豬)");
var Dizhi=new Array("子","丑","寅","卯","辰","巳","午","未","申","酉","戌","亥");
return Tiangan[YYYY%10]+Dizhi[YYYY%12];
}
function CnDateofDateStr(DateGL){
if(CnMonthofDate(DateGL)=="零月") return "　請調整您的計算機日期!";
else return "農歷："+CnYearofDate(DateGL)+ " " + CnMonthofDate(DateGL) + CnDayofDate(DateGL);
}
function SolarTerm(DateGL){
var SolarTermStr=new Array(
"小寒","大寒","立春","雨水","驚蟄","春分",
"清明","谷雨","立夏","小滿","芒種","夏至",
"小暑","大暑","立秋","處暑","白露","秋分",
"寒露","霜降","立冬","小雪","大雪","冬至");
var DifferenceInMonth=new Array(
1272060,1275495,1281180,1289445,1299225,1310355,
1321560,1333035,1342770,1350855,1356420,1359045,
1358580,1355055,1348695,1340040,1329630,1318455,
1306935,1297380,1286865,1277730,1274550,1271556);
var DifferenceInYear=31556926;
var BeginTime=new Date(1901/1/1);
BeginTime.setTime(947120460000);
for(;DateGL.getYear()<BeginTime.getYear();){
BeginTime.setTime(BeginTime.getTime()-DifferenceInYear*1000);
}
for(;DateGL.getYear()>BeginTime.getYear();){
BeginTime.setTime(BeginTime.getTime()+DifferenceInYear*1000);
}
for(var M=0;DateGL.getMonth()>BeginTime.getMonth();M++){
BeginTime.setTime(BeginTime.getTime()+DifferenceInMonth[M]*1000);
}
if(DateGL.getDate()>BeginTime.getDate()){
BeginTime.setTime(BeginTime.getTime()+DifferenceInMonth[M]*1000);
M++;
}
if(DateGL.getDate()>BeginTime.getDate()){
BeginTime.setTime(BeginTime.getTime()+DifferenceInMonth[M]*1000);
M==23?M=0:M++;
}
var JQ;
if(DateGL.getDate()==BeginTime.getDate()){
JQ="　 今天是"+SolarTermStr[M] + "";
}
else if(DateGL.getDate()==BeginTime.getDate()-1){
JQ="　 明天是"+SolarTermStr[M] + "";
}
else if(DateGL.getDate()==BeginTime.getDate()-2){
JQ="　 后天是"+SolarTermStr[M] + "";
}
else{
JQ=" "
if(DateGL.getMonth()==BeginTime.getMonth()){
JQ+="　 本月";
}
else{
JQ+="　 下月";
}
JQ+=BeginTime.getDate()+"日"+""+SolarTermStr[M]+"";
}
return JQ;
}
function CAL()
{}
RunGLNL();