function formats(time, format){
   /*time:2016-10-17*/
   /*format:yyyy-MM-dd HH:mm:ss*/
   var times = parseInt((new Date(time.replace(new RegExp("-","gm"),"/"))).getTime()) + parseInt(90 * 24 * 60 * 60 * 1000);
   var t = new Date(times);
   var tf = function(i){return (i < 10 ? ‘0‘ : ‘‘) + i};
   return format.replace(/yyyy|MM|dd|HH|mm|ss/g, function(a){
      switch(a){
         case ‘yyyy‘:
            return tf(t.getFullYear());
            break;
         case ‘MM‘:
            return tf(t.getMonth() + 1);
            break;
         case ‘dd‘:
            return tf(t.getDate());
            break;
         case ‘HH‘:
            return tf(t.getHours());
            break;
         case ‘mm‘:
            return tf(t.getMinutes());
            break;
         case ‘ss‘:
            return tf(t.getSeconds());
            break;
      }
   })
}

日期时间和时间戳的相互转换