jquery动画效果和rgb应用什么的

var rgb = $b.css("background-color");
    console.log(rgb);
    var list = new Array();
    var s = rgb.replace(/rgb\((\d{1,3})\,\s*(\d{1,3})\,\s*(\d{1,3})\)/, "$1+$2+$3");
    console.log(s);
    list = s.split(‘+‘);
    console.log(list);
    for(var i = 0; i < list.length; i++)
    {
        list[i]=parseInt(list[i]) + 10;
    }
    console.log(list);
    $b.css("background-color", "rgb("+list[0]+","+list[1]+","+list[2]+‘)‘);

$b.animate(
        {width: "+=80px"}, 
        {duration:1000, 
        step: function(){
            $(this).css("height", function(){
                return parseInt($(this).css("height"))+1;
            });
        }
    }
    )