当javaScript从入门到提高前需要注意的细节：函数部分(5)

    function() { 
        for (var i = 0; i < 10; i++) { 
            var ol = $("<li>").css({ width: 30, height: 30 }). 
            addClass("left"). 
            appendTo("ol"); 
            ol.css("backgroundColor", 
                function(index, value) { 
                    index = $("ol>li").index(this); 
                    var r, g, b = 0, colorValue = ""; 
                    if (index == 0) { 
                        r = parseInt(Math.random() * 256); 
                        g = parseInt(Math.random() * 256); 
                        b = parseInt(Math.random() * 256); 
                    } 
                    else { 
                        colorValue = $("ol>li").eq(index - 1).css("backgroundColor"). 
                                    toString().replace("rgb(", "").replace(")", "") 
                        r = parseInt(colorValue.split(",")[0]); 
                        g = parseInt(colorValue.split(",")[1]); 
                        b = parseInt(colorValue.split(",")[2]) + 5;