JavaScript转换农历类实现及调用方法

农历是日常生活中不可或缺的一部分，它与人类的生活息息相关，从某种程度上说，它一直伴随着我们，今天的任务是JavaScript转换农历类的实现，感兴趣的你可以千万不要错过，希望本文对你有所帮助

 
var LunarDate = { 
madd: new Array(0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334), 
HsString: '甲乙丙丁戊己庚辛壬癸', 
EbString: '子丑寅卯辰巳午未申酉戌亥', 
NumString: "一二三四五六七八九十", 
MonString: "正二三四五六七八九十冬腊", 
CalendarData: new Array(0xA4B, 0x5164B, 0x6A5, 0x6D4, 0x415B5, 0x2B6, 0x957, 0x2092F, 0x497, 0x60C96, 0xD4A, 0xEA5, 0x50DA9, 0x5AD, 0x2B6, 0x3126E, 0x92E, 0x7192D, 0xC95, 0xD4A, 0x61B4A, 0xB55, 0x56A, 0x4155B, 0x25D, 0x92D, 0x2192B, 0xA95, 0x71695, 0x6CA, 0xB55, 0x50AB5, 0x4DA, 0xA5B, 0x30A57, 0x52B, 0x8152A, 0xE95, 0x6AA, 0x615AA, 0xAB5, 0x4B6, 0x414AE, 0xA57, 0x526, 0x31D26, 0xD95, 0x70B55, 0x56A, 0x96D, 0x5095D, 0x4AD, 0xA4D, 0x41A4D, 0xD25, 0x81AA5, 0xB54, 0xB6A, 0x612DA, 0x95B, 0x49B, 0x41497, 0xA4B, 0xA164B, 0x6A5, 0x6D4, 0x615B4, 0xAB6, 0x957, 0x5092F, 0x497, 0x64B, 0x30D4A, 0xEA5, 0x80D65, 0x5AC, 0xAB6, 0x5126D, 0x92E, 0xC96, 0x41A95, 0xD4A, 0xDA5, 0x20B55, 0x56A, 0x7155B, 0x25D, 0x92D, 0x5192B, 0xA95, 0xB4A, 0x416AA, 0xAD5, 0x90AB5, 0x4BA, 0xA5B, 0x60A57, 0x52B, 0xA93, 0x40E95), 
Year: null, 
Month: null, 
Day: null, 
TheDate: null, 
GetBit: function(m, n){ 
return (m >> n) & 1; 
}, 
e2c: function(){ 
this.TheDate = (arguments.length != 3) ? new Date(): new Date(arguments[0], arguments[1], arguments[2]); 
var total, m, n, k; 
var isEnd = false; 
var tmp = this.TheDate.getFullYear(); 
total = (tmp - 1921) * 365 + Math.floor((tmp - 1921) / 4) + this.madd[this.TheDate.getMonth()] + this.TheDate.getDate() - 38; 
if (this.TheDate.getYear() % 4 == 0 && this.TheDate.getMonth() > 1) { 
total++; 
} 
for (m = 0; ; m++) { 
k = (this.CalendarData[m] <0xfff) ? 11: 12; 
for (n = k; n >= 0; n--) { 
if (total <= 29 + this.GetBit(this.CalendarData[m], n)) { 
isEnd = true; 
break; 
} 
total = total - 29 - this.GetBit(this.CalendarData[m], n); 
} 
if (isEnd) 
break; 
} 
this.Year = 1921 + m; 
this.Month = k - n + 1; 
this.Day = total; 
if (k == 12) { 
if (this.Month == Math.floor(this.CalendarData[m] / 0x10000) + 1) { 
this.Month = 1 - this.Month; 
} 
if (this.Month > Math.floor(this.CalendarData[m] / 0x10000) + 1) { 
this.Month--; 
} 
} 
}, 
GetcDateString: function(){ 
var tmp = ""; 
tmp += this.HsString.charAt((this.Year - 4) % 10); 
tmp += this.EbString.charAt((this.Year - 4) % 12); 
tmp += "年 "; 
if (this.Month <1) { 
tmp += "(闰)"; 
tmp += this.MonString.charAt(-this.Month - 1); 
} else { 
tmp += this.MonString.charAt(this.Month - 1); 
} 
tmp += "月"; 
tmp += (this.Day <11) ? "初": ((this.Day <20) ? "十": ((this.Day <30) ? "廿": "三十")); 
if (this.Day % 10 != 0 || this.Day == 10) { 
tmp += this.NumString.charAt((this.Day - 1) % 10); 
} 
return tmp; 
}, 
GetLunarDay: function(solarYear, solarMonth, solarDay) { 
if (solarYear <1921 || solaryear> 2020) { 
return ""; 
} else { 
solarMonth = (parseInt(solarMonth) > 0) ? (solarMonth - 1): 11; 
this.e2c(solarYear, solarMonth, solarDay); 
return this.GetcDateString(); 
} 
} 
}; 