显示当前一个礼拜的日期 new Date（）

显示这一礼拜的日期

html：

<div class="month"></div>
        <table>
            <tr>
                <th>日</th>
                <th>一</th>
                <th>二</th>
                <th>三</th>
                <th>四</th>
                <th>五</th>
                <th>六</th>
            </tr>
            <tr class="day-time">
                <td></td>
                <td></td>
                <td></td>
                <td></td>
                <td></td>
                <td></td>
                <td></td>
            </tr>
        </table>

Js：

var date = new Date(),
    weekday = date.getDay(),
    month = date.getMonth();

    // 日期
    // 获取今天是星期几，然后获取这周礼拜天的时间戳
    var sundayTime = date.getTime() - weekday*24*60*60*1000;
    for(var i = 0; i < 7; i++){
        $(".day-time td").eq(i).text(new Date(sundayTime + i*24*60*60*1000).getDate())
    }

    // 展示月份
    $(".month").text('当前的月份是：' + (month+1) + "月")

截图：

第二种： 很久之前写的 ，很复杂的样子，是当时做项目的时候弄的 ，可以忽略不看，那时连时间戳是个啥玩意都不知道，留着当纪念

<div class="main">
    <table border="1">
        <tr>
            <td>一</td>
            <td>二</td>
            <td>三</td>
            <td>四</td>
            <td>五</td>
            <td>六</td>
            <td>日</td>
        </tr>
    </table>
</div>

var doctorlist = [
{names:"张三",posite:"首席执行院长",url:"doctor_info.php",imgurl:"img/index05.jpg",timers:["2014-3-31", "2014-4-2"]},
　　{names:"李四",posite:"副院长",url:"doctor_info.php",imgurl:"img/index05.jpg",timers:["2014-3-26", "2014-3-27"]}
]

function gettime(z) {

    // 接收时间数据
    var a = doctorlist[z].timers,
        a_length = a.length,
        b;

    var d =new Date();
        // d.setFullYear(2014,1,28); // 设置时间  2014年 12月27日
        _month = d.getMonth()+1;  // 获取当天的月份 3月
        _beforemonth = d.getMonth();
        _aftermonth = d.getMonth()+2;
        _day = d.getDate();  // 获取当天是日份 几号   15号
        _weekday = d.getDay(); // 获取当天是周几  星期6

        function maxDay(month){
            //  计算一个月有几天
            return new Date(d.getFullYear(), d.getMonth()+1,0).getDate();
        }
        function beformaxDay(month){
            //  计算一个月有几天
            return new Date(d.getFullYear(), d.getMonth(),0).getDate();
        }

        //   这周都在本月份之内

        if (_day-_weekday> 0 &&  maxDay(_month) > _day + (7-_weekday)) {

            var addHtml = "<tr class='tabbottyr'>";  //  <td> </td>
            for (var i = 1; i <= 7 ; i++) {
                var ifelse;
                for (var m = 0; m < a_length; m++) {
                    b = a[m].split('-');
                    if ((_day-_weekday+i)==b[2]&&_month==b[1]) {
                        ifelse="asd";
                    }
                };
                if (ifelse=="asd") {
                    addHtml = addHtml + "<td class='tabbot tabyes'>" + (_day-_weekday+i) + "</td>";
                    ifelse="";
                }else {
                    addHtml = addHtml + "<td class='tabbot'>" + (_day-_weekday+i) + "</td>";
                }
            };
            addHtml = addHtml + "</tr>";

        };

        //  当前这个礼拜里有这个月的月末 下个月的月初 在月底
        if (_day + (7-_weekday) > maxDay(_month)) {
            var addHtml = "<tr class='tabbottyr'>";
            for (var i = 1; i <= _weekday-(_day-maxDay(_month)); i++) {

                var ifelse;
                for (var m = 0; m < a_length; m++) {
                    b = a[m].split('-');
                    if ((_day-_weekday+i)==b[2]&&_month==b[1]) {
                        ifelse="asd";
                    }
                };
                if (ifelse=="asd") {
                    addHtml = addHtml + "<td class='tabbot tabyes'>" + (_day-_weekday+i) + "</td>";
                    ifelse="";
                }else {
                    addHtml = addHtml + "<td class='tabbot'>" + (_day-_weekday+i) + "</td>";
                }
            };
            for (var j = 1; j <= 7-(_weekday-(_day-maxDay(_month))); j++) {

                var ifelse;
                for (var m = 0; m < a_length; m++) {
                    b = a[m].split('-');
                    if (j == b[2]&&_aftermonth==b[1]) {
                        ifelse="asd";
                    }
                };
                if (ifelse=="asd") {
                    addHtml = addHtml + "<td class='tabbot tabyes'>" + j + "</td>";
                    ifelse="";
                }else {
                    addHtml = addHtml + "<td class='tabbot'>" + j + "</td>";
                }
            }
            addHtml = addHtml + "</tr>";
        }

        // 当前这个礼拜里有这个月的月末 下个月的月初 在月初
        if (_day-_weekday < 0) {

            var addHtml = "<tr class='tabbottyr'>";
            for (var i = 1; i <= _weekday-_day; i++) {

                var ifelse;
                for (var m = 0; m < a_length; m++) {
                    b = a[m].split('-');
                    if (_beforemonth==b[1]&&(beformaxDay(_month)-(_weekday-_day)+i) == b[2]) {
                        ifelse="asd";
                    }
                };
                if (ifelse=="asd") {
                    addHtml = addHtml + "<td class='tabbot tabyes'>" + (beformaxDay(_month)-(_weekday-_day)+i ) + "</td>";
                    ifelse="";
                }else {
                    addHtml = addHtml + "<td class='tabbot'>" + (beformaxDay(_month)-(_weekday-_day)+i ) + "</td>";
                }
            };

            for (var j = 0; j < 7-(_weekday-_day); j++) {
                var ifelse;
                for (var m = 0; m < a_length; m++) {
                    b = a[m].split('-');
                    if ((j+1) == b[2]&&_month==b[1]) {
                        ifelse="asd";
                    }
                };
                if (ifelse=="asd") {
                    addHtml = addHtml + "<td class='tabbot tabyes'>" + (j+1) + "</td>";
                    ifelse="";
                }else {
                    addHtml = addHtml + "<td class='tabbot'>" + (j+1) + "</td>";
                }

                // addHtml = addHtml + "<td class='tabbot'>" + (j+1) + "</td>";
            };
            addHtml = addHtml + "</tr>";
        };

        return addHtml;

}