微信小程序:万年历源码(老黄历)

【实例截图】

【核心代码】

var dateTool = {
    CalendarData: [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],
    madd: [0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334],
    tgString: '甲乙丙丁戊己庚辛壬癸',
    dzString: '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',
    weekString: '日一二三四五六',
    sx: '鼠牛虎兔龙蛇马羊猴鸡狗猪',
    // 获取当前日期
    now: function(withWeek) {
        var d = new Date();
        var year = d.getFullYear();
        var month = d.getMonth()   1;
        var date = d.getDate();
        var week = d.getDay();
        var curDateTime = year;
        if (month > 9) {
            curDateTime = curDateTime   '年'   month;
        } else {
            curDateTime = curDateTime   '年0'   month;
        }
        if (date > 9) {
            curDateTime = curDateTime   '月'   date   '日';
        } else {
            curDateTime = curDateTime   '月0'   date   '日';
        }
        if (withWeek) {
            var weekday = '星期'   this.weekString[week];
            curDateTime = curDateTime   ' '   weekday;
        }
        return curDateTime;
    },
    lunar: function() {
        var D = new Date();
        var yy = D.getFullYear();
        var mm = D.getMonth()   1;
        var dd = D.getDate();
        // var ww = D.getDay();
        // var ss = parseInt(D.getTime() / 1000);
        if (yy < 100) {
            yy = '19'   yy;
        }
        return this.getLunarDay(yy, mm, dd);
    },
    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();
        }
    },
    getcDateString: function() {
        var tmp = '';
        /**
         * 显示农历年：（如：甲午(马)年）
         */
        /*
        tmp  = this.tgString.charAt((this.cYear - 4) % 10);
        tmp  = this.dzString.charAt((this.cYear - 4) % 12);
        tmp  = "(";
        tmp  = this.sx.charAt((this.cYear - 4) % 12);
        tmp  = ")年 ";
        */
        if (this.cMonth < 1) {
            tmp  = '(闰)';
            tmp  = this.monString.charAt(-this.cMonth - 1);
        } else {
            tmp  = this.monString.charAt(this.cMonth - 1);
        }
        tmp  = '月';
        tmp  = (this.cDay < 11) ? '初' : ((this.cDay < 20) ? '十' : ((this.cDay < 30) ? '廿' : '三十'));
        if (this.cDay % 10 != 0 || this.cDay == 10) {
            tmp  = this.numString.charAt((this.cDay - 1) % 10);
        }
        return tmp;
    },
    getBit: function(m, n) {
        return (m >> n) & 1;
    },
    // 农历转换
    e2c: function() {
        this.theDate = (arguments.length != 3) ? new Date() : new Date(arguments[0], arguments[1], arguments[2]);
        var total;
        var m;
        var n;
        var k;
        var isEnd = false;
        var tmp = this.theDate.getYear();
        if (tmp < 1900) {
            tmp  = 1900;
        }
        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.cYear = 1921   m;
        this.cMonth = k - n   1;
        this.cDay = total;
        if (k == 12) {
            if (this.cMonth == Math.floor(this.CalendarData[m] / 0x10000)   1) {
                this.cMonth = 1 - this.cMonth;
            }
            if (this.cMonth > Math.floor(this.CalendarData[m] / 0x10000)   1) {
                this.cMonth--;
            }
        }
        return {year: this.cYear, month: this.cMonth, day: this.cDay};
    },
    doubleNumber: function(num) {
      return num < 10 ? "0"   num : num;
    },
    format: function(date, tpl) {
      var week = "日一二三四五六";
      var Y = date.getFullYear();
      var M = this.doubleNumber(date.getMonth()   1);
      var D = this.doubleNumber(date.getDate());
      var W = week.charAt(date.getDay());
      var h = this.doubleNumber(date.getHours());
      var i = this.doubleNumber(date.getMinutes());
      var s = this.doubleNumber(date.getSeconds());
      return tpl.replace(/\{Y\}/g, Y)
                .replace(/\{M\}/g, M)
                .replace(/\{D\}/g, D)
                .replace(/\{W\}/g, W)
                .replace(/\{h\}/g, h)
                .replace(/\{i\}/g, i)
                .replace(/\{s\}/g, s);
    },
    isArray: function(arr) {
        if (Array.isArray) {
            return Array.isArray(arr);
        }
        return Object.prototype.toString.call(arr) === '[object Array]';
    }
};

module.exports = dateTool;