$.fn.datebox = function (options) {

    var config = {

        $valueEle: $("#outputTime"),

        $prev: $(".datetitle #up"),

        $next: $(".datetitle #down"),

        minDate:null,

        maxDate:null,

    }

    config = $.extend(config, options);

    Date.prototype.format = function (format) {

        var o = {

            "M+": this.getMonth() + 1, //month

            "d+": this.getDate(), //day

            "h+": this.getHours(), //hour

            "m+": this.getMinutes(), //minute

            "s+": this.getSeconds(), //second

            "q+": Math.floor((this.getMonth() + 3) / 3), //quarter

            "S": this.getMilliseconds() //millisecond

        }

        if (/(y+)/.test(format))

            format = format.replace(RegExp.$1,

                (this.getFullYear() + "").substr(4 - RegExp.$1.length));

        for (var k in o)

            if (new RegExp("(" + k + ")").test(format))

                format = format.replace(RegExp.$1,

                    RegExp.$1.length == 1 ? o[k] :

                        ("00" + o[k]).substr(("" + o[k]).length));

        return format;

    };

    var self = this;

    var $ele = $(this);

    var maxdate,mindate;

    var nstr = new Date();

    var ynow = nstr.getFullYear();

    var mnow = nstr.getMonth();

    var dnow = nstr.getDate();

     if(!config.minDate){

           mindate=nstr;

     }else{

       mindate=new Date(config.mindate)

     }

     if(config.maxDate){

        maxdate=new Date(config.maxDate)

     }

    self.isLeap = function (year) {

        return (year % 100 == 0 ? res = (year % 400 == 0 ? 1 : 0) : res = (year % 4 == 0 ? 1 : 0));

    }

     console.log("最小日期是:",mindate.format("yyyy-MM-dd"))

     console.log("最大日期是:",maxdate.format("yyyy-MM-dd"))

     console.log("当前日期：",currentDate())

    pain();

    function pain() {

        var n1str = new Date(ynow, mnow, 1); //当月第一天

        var firstday = n1str.getDay(); //当月第一天星期几

        var m_days = new Array(31, 28 + self.isLeap(ynow), 31, 30, 31, 30, 31, 31, 30, 31, 30, 31); //各月份的总天数

        var tr_str = Math.ceil((m_days[mnow] + firstday) / 7); //表格所需要行数

        //打印表格第一行（有星期标志）

        $("#datetb").remove();

        var str = "<table id='datetb' cellspacing='0'><tr><td>周日</td><td>周一</td><td>周二</td><td>周三</td><td>周四</td><td>周五</td><td>周六</td></tr>";

        for (i = 0; i < tr_str; i++) { //表格的行

            str += "<tr>";

            for (k = 0; k < 7; k++) { //表格每行的单元格

                idx = i * 7 + k; //单元格自然序列号

                date_str = idx - firstday + 1; //计算日期

                (date_str <= 0 || date_str > m_days[mnow]) ? date_str = "&nbsp;" : date_str = idx - firstday + 1; //过滤无效日期（小于等于零的、大于月总天数的）

                //打印日期：今天底色样式

                date_str == dnow ? str += "<td class='selected' data-day=" + date_str + ">" + "<div>" + date_str + "</div>" + "<div class='subscribe'>预约</div>" + "</td>" : str += "<td  data-day=" + date_str + ">" + date_str + "</td>";

            }

            str += "</tr>"; //表格的行结束

        }

        str += "<tfoot><tr><td colspan='7'>" + ynow + "年" + (mnow + 1) + "月</td></tr></tfoot>";

        str += "</table>"; //表格结束

        $ele.html(str);

        setDate(ynow, mnow, dnow);

    }

    function setDate(y, m, d) {

        var current = (new Date(y, m, d, 10, 0, 0)).format("yyyy-MM-dd");

        console.log(y, m, d, current);

        config.$valueEle.val(current);

    }

    function currentDate(){

        return (new Date(ynow, mnow, dnow, 10, 0, 0)).format("yyyy-MM-dd");

    }

    self.prev=function(){

       var temp = mnow - 1;

        if (temp < 0) {

            mnow = 11;

            ynow--;

        } else {

             var prevdate=new Date(ynow, mnow-1, 31, 10, 0, 0);

            if (prevdate <mindate) {

                console.log("超过最小可预约日期",prevdate.format("yyyy-MM-dd"))

                return;

            }

            mnow--;

        }

         if(ynow==mindate.getFullYear()&&mnow==mindate.getMonth()){

                 var _mday=mindate.getDate();

                if(dnow<_mday) dnow=_mday;

            }

        pain();

    }

    self.next=function(){

           var nextdate=new Date(ynow, mnow+1, 1, 10, 0, 0);

            if (nextdate>maxdate) {

                console.log("超过最大可预约日期",nextdate.format("yyyy-MM-dd"))

                return ;

            }

          var temp = mnow + 1;

        if (temp > 11) {

            mnow = 0;

            ynow++;

        } else {

            mnow++;

        }

          if(ynow==maxdate.getFullYear()&&mnow==maxdate.getMonth()){

                var _mday=maxdate.getDate();

                if(dnow>_mday) dnow=_mday;

            }

        pain();

    }

    self.seleted=function($td){

       if (!$td.hasClass('selected')) {

            var day = $td.data("day");

             var selectedDate=new Date(ynow, mnow, day, 1, 0, 0);

            if (selectedDate<mindate||selectedDate>maxdate) {

                 console.log("该日期不能预约");

                return;

            }

            $(".datebox table td").removeClass('selected').children('.subscribe').remove();

           $td.addClass('selected');

           $td.html('<div>' + $td.html() + '</div><div class="subscribe">预约</div>');

           dnow=day;

            setDate(ynow, mnow, day);

        }

    }

    self.getDate=function(){

       return currentDate();

    }

    $ele.on("click", "table td", function () {

      self.seleted($(this));

    });

    config.$prev.click(function () {

     self.prev();

    });

   config.$next.click(function () {

      self.next();

    });

    return self;

}

 var date = $(".datebox").datebox({maxDate:"2016-12-20"});