JS格式化Thu May 12 2017 08:00:00 GM

<script type="text/javascript">
    function checkTime(i){
       if (i<10){
           i="0" + i
       }
       return i;
    }
    var date = new Date('Thu May 12 2017 08:00:00 GMT+0800 (中国标准时间)');  
    date_value=date.getFullYear() + '-' + (date.getMonth() + 1) + '-' + date.getDate() + ' ' + checkTime(date.getHours()) + ':' + checkTime(date.getMinutes()) + ':' + checkTime(date.getSeconds());  
    //最后显示yyyy-MM-dd hh:mm:ss  
</script>