JavaScript之获取时间戳

getTimeStamp(time, flat)  
注：time 指定天数， flat 指定0点

getTimeStamp() 当前时间戳
getTimeStamp(0,true) 当天0点时间戳
getTimeStamp(-1) 昨天时间戳
getTimeStamp(1) 明天时间戳

function getTimeStamp(time=0, flat=false)
{
    today = new Date();
    if (flat)
    {
        today.setHours(0);
        today.setMinutes(0);
        today.setSeconds(0);
        today.setMilliseconds(0);
    }
    timeStamp = Date.parse(today) / 1000 + parseInt(time) * 60 * 60 * 24;
    return timeStamp;
}