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    <title>Document</title>
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</body>
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<script>
    var myDate = new Date();
    //    获取今天是周几
    var weekDay = myDate.getDay();
    //    获取月份
    var month = myDate.getMonth() + 1;
//    获取今天日
    var today = myDate.getDate();
//    获取年份
    var year = myDate.getFullYear()
    var justifyYear = justifyYear(year);
    function justifyYear(year) {
        let a1=year%4==0;
        let a2=year%100!=0;
        let a3=year%400==0;
        let　result=(a1&&a2)||a3?true:false;
        return result
    }

//    获取本月有多少天
    var monthDay = getMonthDay(month)
    function getMonthDay(month) {
        if(month == 1 || month == 3 || month == 5 || month == 7 || month == 8 || month == 10 || month == 12){
            return 31;
        }else if(month == 4 || month == 6 || month == 9 || month == 11){
            return 30;
        }
        if(justifyYear){
            return 29;
        }else{
            return 28;
        }
    }

    if(weekDay == 0){
        weekDay = 7;
    }
    var flag = true;
    justifyWeekStartEnd()
    function justifyWeekStartEnd() {
        //    true 代表下周
        if(flag){
//        这是下周的代码
//        现在距离周日还有多少天
            var distanceWeekend = 7 - weekDay;
//        现在的月天 + 距离周日的天
            var allMonthDay = today + distanceWeekend;
//        判断周日是否是下一个月
            if(allMonthDay <= monthDay){
//            开始时间
                console.log(year + "-" + month + "-" +allMonthDay)
//            结束时间
                var distanceNextWeekend = distanceWeekend + 6;
                var allNextMonthDay = today + distanceNextWeekend;
                if(allNextMonthDay <= monthDay){
                    console.log(year + "-" + month + "-" +allNextMonthDay)
                }else {
                    month ++;
                    if(month > 12){
                        year ++;
                        month = 1;
                    }
                    var allNextMonthDay = distanceNextWeekend - (monthDay - today);
                    console.log(year + "-" + month + "-" +allNextMonthDay)
                }
            }else{
                month ++;
                if(month > 12){
                    year ++;
                    month = 1;
                }
                var allMonthDay = distanceWeekend - (monthDay - today)
                var allNextMonthDay = allMonthDay + 6;
                console.log(year + "-" + month + "-" +allMonthDay)
                console.log(year + "-" + month + "-" +allNextMonthDay)
            }
        }else{
//      这是下下周的代码
//        距离下下周日还有多少天
            var distanceWeekend = 14 - weekDay;
            var allMonthDay = today + distanceWeekend;
            if(allMonthDay <= monthDay){
                console.log(year + "-" + month + "-" +allMonthDay)
                //            结束时间
                var distanceNextWeekend = distanceWeekend + 6;
                var allNextMonthDay = today + distanceNextWeekend;
                if(allNextMonthDay <= monthDay){
                    console.log(year + "-" + month + "-" +allNextMonthDay)
                }else {
                    month ++;
                    if(month > 12){
                        year ++;
                        month = 1;
                    }
                    var allNextMonthDay = distanceNextWeekend - (monthDay - today);
                    console.log(year + "-" + month + "-" +allNextMonthDay)
                }
            }else{
                month ++;
                if(month > 12){
                    year ++;
                    month = 1;
                }
                var allMonthDay = distanceWeekend - (monthDay - today)
                var allNextMonthDay = allMonthDay + 6;
                console.log(year + "-" + month + "-" +allMonthDay)
                console.log(year + "-" + month + "-" +allNextMonthDay)
            }

        }
    }

</script>