function format(shijianchuo){
    function add0(m){
        return m<10?'0'+m:m
    };
    var time = new Date(shijianchuo);
    var y = time.getFullYear();
    var m = time.getMonth()+1;
    var d = time.getDate();
    var h = time.getHours();
    var mm = time.getMinutes();
    var s = time.getSeconds
 
();
    return y+'-'+add0(m)+'-'+add0(d)+' '+add0(h)+':'+add0(mm)+':'+add0(s);
}