JavaScript 得到上周时间范围，本月时间范围

小咪咪 2022-06-10 14:07 223阅读 0赞

//1.  得到本月一号为开始时间，得到当前时间减两天为结束时间
    function SetDayDate() {
    	//当前时间减两天
    	var dataValue = new Date(new Date().getTime() - (1000 * 60 * 60 * 48));
        //（1000*60*60*24）是1千毫秒（是1秒）乘60（是1分）乘60（是1小时）*24（是一天）加减一天把前边的-+换一下就行。
    	
    	var year = dataValue.getFullYear();
    	var month = dataValue.getMonth() + 1;
    	var day = dataValue.getDate();
    
    	if (month < 10) {
    		month = '0' + month;
    	}
    	if (day < 10) {
    		if (day < 1) {
    			day = '01';
    		} else {
    			day = '0' + day;
    		}
    	}
    	var stime = year + '/' + month + '/' + '01';  //开始时间
    	var etime = year + '/' + month + '/' + day;   //结束时间
    }
    
       
    
    //2.  得到当前时间的上周时间范围
    function SetWeekDate() {
    	var dataValue = new Date();
    
    	var year = dataValue.getFullYear();
    	var month = dataValue.getMonth() + 1;
    	var day = dataValue.getDate();
    
    	var thisWeekStart; //本周周一的时间
    	if (dataValue.getDay() == 0) {  //周天的情况；
    		thisWeekStart = (new Date(year + '/' + month + '/' + day)).getTime() - ((dataValue.getDay()) + 6) * 86400000;
    	} else {
    		thisWeekStart = (new Date(year + '/' + month + '/' + day)).getTime() - ((dataValue.getDay()) - 1) * 86400000;
    	}
    
    	//获得上周时间
    	var prevWeekStart = thisWeekStart - 7 * 86400000;//上周周一的时间
    	var prevWeekEnd = thisWeekStart - 1 * 86400000;//上周周日的时间
    
    	var stime = formatDate(new Date(prevWeekStart)); //开始时间
    	var etime = formatDate(new Date(prevWeekEnd));   //结束时间
    
    }
    
    //3.  得到当前时间的上月时间范围
    function SetMonthDate() {
    	var dataValue = new Date()；
    
    	var currentYear = dataValue.getFullYear();
    	var currentMonth = dataValue.getMonth();
    	var prevCurrentYear = 0, prevCurrentMonth = 0;
    
    	if (currentMonth == 0) {
    		prevCurrentYear = currentYear - 1;
    		prevCurrentMonth = 12;
    	} else {
    		prevCurrentYear = currentYear;
    		prevCurrentMonth = currentMonth - 1;
    	}
    	var prevmonthLastday = (new Date(currentYear, currentMonth, 1)).getTime() - 86400000;
    
    	var stime = formatDate(new Date(prevCurrentYear, prevCurrentMonth, 1));  //开始时间
    	var etime = formatDate(new Date(prevmonthLastday));                      //结束时间
    }
    	
    	
    //格式化日期：yyyy/MM/dd
    function formatDate(date) {
    	var myyear = date.getFullYear();
    	var mymonth = date.getMonth() + 1;
    	var myweekday = date.getDate();
    
    	if (mymonth < 10) {
    		mymonth = "0" + mymonth;
    	}
    	if (myweekday < 10) {
    		myweekday = "0" + myweekday;
    	}
    	return (myyear + "/" + mymonth + "/" + myweekday);
    }

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