js 获取昨天上周上个月上个季度的开始时间和结束时间

深碍√TFBOYSˉ_ 2021-10-08 06:44 774阅读 0赞

<html>  
    <head>  
    <meta charset="utf-8">  
    <script type="text/javascript">  
        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 dayMSec = 24 * 3600 * 1000;  
        var today = new Date();  
          
        //得到今天距离本周一的天数  
        function getDayBetweenMonday(){  
            //得到今天的星期数(0-6),星期日为0  
            var weekday = today.getDay();  
            //周日  
            if(weekday == 0){  
                return 6;  
            }else{  
                return weekday - 1;  
            }  
        }  
          
        function getLastDay(){  
              
            var yestodayMSec=today.getTime() -dayMSec;  
              
            var yestoday = new Date(yestodayMSec);  
              
            document.getElementById("beginTime").value = yestoday.format('yyyy-MM-dd');  
            document.getElementById("endTime").value = yestoday.format('yyyy-MM-dd');  
        }  
          
        function getLastWeek(){  
            //得到距离本周一的天数  
            var weekdayBetween = getDayBetweenMonday();  
              
            //得到本周星期一的毫秒值  
            var nowMondayMSec = today.getTime() - weekdayBetween * dayMSec;  
            //得到上周一的毫秒值  
            var lastMondayMSec = nowMondayMSec - 7 * dayMSec;  
            //得到上周日的毫秒值  
            var lastSundayMSec = nowMondayMSec - 1 * dayMSec;  
              
            var lastMonday = new Date(lastMondayMSec);  
              
            var lastSunday = new Date(lastSundayMSec);  
              
              
            document.getElementById("beginTime").value = lastMonday.format('yyyy-MM-dd');  
            document.getElementById("endTime").value = lastSunday.format('yyyy-MM-dd');  
        }  
          
        function getLastMonth(){  
            //得到上一个月的第一天  
            var lastMonthFirstDay = new Date(today.getFullYear() , today.getMonth()-1 , 1);  
            //得到本月第一天  
            var nowMonthFirstDay = new Date(today.getFullYear() , today.getMonth(), 1);  
            //得到上一个月的最后一天的毫秒值  
            var lastMonthLastDayMSec = nowMonthFirstDay.getTime() - 1 * dayMSec;  
            var lastMonthLastDay = new Date(lastMonthLastDayMSec);  
              
            document.getElementById("beginTime").value = lastMonthFirstDay.format('yyyy-MM-dd');  
            document.getElementById("endTime").value = lastMonthLastDay.format('yyyy-MM-dd');  
        }  
          
        function getLastQuarter(){  
            //得到上一个季度的第一天  
            var lastQuarterFirstDay = new Date(today.getFullYear() , today.getMonth() - 3 , 1);  
            //得到本月第一天  
            var nowMonthFirstDay = new Date(today.getFullYear() , today.getMonth(), 1);  
            //得到上一个季度的最后一天的毫秒值  
            var lastQuarterLastDayMSec = nowMonthFirstDay.getTime() - 1 * dayMSec;  
            var lastQuarterLastDay = new Date(lastQuarterLastDayMSec);  
              
            document.getElementById("beginTime").value = lastQuarterFirstDay.format('yyyy-MM-dd');  
            document.getElementById("endTime").value = lastQuarterLastDay.format('yyyy-MM-dd');  
        }  
          
    </script>  
    </head>  
    <body>  
        <button type="button" οnclick="getLastDay()">昨天</button>  
        <button type="button" οnclick="getLastWeek()">上周</button>  
        <button type="button" οnclick="getLastMonth()">上月</button>  
        <button type="button" οnclick="getLastQuarter()">上季度</button>  
          
        <input id="beginTime" value="">  
        <input id="endTime" value="">  
    </body>  
    </html>