毫秒或者秒转换为日期格式

function timeToMillion(startStr, endStr) {
    var times;
    if(endStr){
        var startT = new Date(startStr).getTime()
        var endT = new Date(endStr).getTime()
        times = (endT - startT) / 1000
    }else{
        times = startStr
    }
    var day,hour,minute;
    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 (day <= 9) day = '0' + day;
    // if (hour <= 9) hour = '0' + hour;
    // if (minute <= 9) minute = '0' + minute;
    // if (second <= 9) second = '0' + second;
    var endOutStr;
    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"
        }
    }
    return endOutStr
}