毫秒或者秒转换为日期格式

function timeToMillion(startStr, endStr) {
        var times;
　　　　　　//如果是2个参数就是时间差
        if (endStr) {
            var startT = new Date(startStr).getTime()
            var endT = new Date(endStr).getTime()
            times = (endT - startT) / 1000
　　　　　　// 如果是一个参数，参数值是秒数

        } else {
            times = startStr
        }
        var day, hour, minute,endOutStr;
        if (times > 0) {
            // console.log(times)
            day = Math.floor(times / (60 * 60 * 24));
            hour = Math.floor(times / (60 * 60)) - (day * 24);
            minute = Math.floor(times / 60) - (day * 24 * 60) - (hour * 60);
            // second = Math.floor(times) - (day * 24 * 60 * 60) - (hour * 60 * 60) - (minute * 60);
            if (parseInt(day) != 0) {
                endOutStr = day + "天" + hour + "小時" + minute + "分鐘"
            } else {
                if (parseInt(hour) != 0) {
                    endOutStr = hour + "小時" + minute + "分鐘"
                } else {
                    endOutStr = minute + "分鐘"
                }
            }
        }else{
            endOutStr = 0
        }
        // if (day <= 9) day = '0' + day;
        // if (hour <= 9) hour = '0' + hour;
        // if (minute <= 9) minute = '0' + minute;
        // if (second <= 9) second = '0' + second;
        return endOutStr
    }

/*
* timeToRemaining(seconds)秒數，返回剩餘的大概時間，有天數直接返回天數，沒天數有小時直接返回小時數，沒有小時數有分鐘數直接返回分鐘數，
* 沒有分鐘數直接返回傳入的秒數
*
**/ 

function timeToRemaining(seconds) {
    var times = parseInt(seconds) || 0;
    var day, hour, minute, second, endOutStr;
    if (times && times > 0) {
        day = Math.floor(times / (60 * 60 * 24));
        hour = Math.floor(times / (60 * 60)) - (day * 24);
        minute = Math.floor(times / 60) - (day * 24 * 60) - (hour * 60);
        // second = Math.floor(times) - (day * 24 * 60 * 60) - (hour * 60 * 60) - (minute * 60);
        second = times

        if (parseInt(day) != 0) {
            return endOutStr = day + "天"
        } else {
            if (parseInt(hour) != 0) {
                return endOutStr = hour + "小時"
            } else {
                if (parseInt(minute) != 0) {
                    return endOutStr = minute + "分鐘"
                }else{
                    return endOutStr = second + "秒"
                }
            }
        }
    } else {
        return endOutStr = 0
    }
}