前两个星期抽时间看了看一直很感兴趣却没时间研究的XML类和绘图API
觉得也没之前想象的那么神秘：）

用了三个晚自习的时间用AS1.0写了这个纯AS+XML的滚动条，算做练习吧。
请高手多多指教！

下面是所有的AS代码：

//%%%%%%%%%%%%MC类自定义方法%%%%%%%%%%%%//
//——————绘图方法————//
//三角型方法
MovieClip.prototype.sanjiaoxing = function(zuobiao1, zuobiao2, zuobiao3, bangzhi, yanse, toumingdu) {
    this.lineStyle(bangzhi, yanse, toumingdu);
    this.moveTo(zuobiao1.x, zuobiao1.y);
    this.lineTo(zuobiao2.x, zuobiao2.y);
    this.lineTo(zuobiao3.x, zuobiao3.y);
    this.lineTo(zuobiao1.x, zuobiao1.y);
};
//宽高矩形法，根据初始点坐标和宽与高确定矩形。x，y为初始点坐标，kuan和gao为矩形的宽和高。
MovieClip.prototype.changkuanjuxing = function(x, y, kuan, gao, bangzhi, yanse, toumingdu) {
    this.lineStyle(bangzhi, yanse, toumingdu);
    this.moveTo(x, y);
    this.lineTo(x+kuan, y);
    this.lineTo(x+kuan, y+gao);
    this.lineTo(x, y+gao);
    this.lineTo(x, y);
};
//中心点矩形法，根据中心点的坐标和宽与高确定矩形。x，y为中心点坐标，kuan，gao为矩形的长和宽。
MovieClip.prototype.zhongxinjuxing = function(x, y, kuan, gao, bangzhi, yanse, toumingdu) {
    this.lineStyle(bangzhi, yanse, toumingdu);
    this.moveTo(x-kuan/2, y+gao/2);
    this.lineTo(x+kuan/2, y+gao/2);
    this.lineTo(x+kuan/2, y-gao/2);
    this.lineTo(x-kuan/2, y-gao/2);
    this.lineTo(x-kuan/2, y+gao/2);
};
//————定位方法————//
MovieClip.prototype.dingwei = function(x, y) {
    this._x = x;
    this._y = y;
};
//————上色方法————//
//定义一个获取颜色值，并把它转化成16进制的函数   
//获取颜色值的后六位，使此方法可以同时满足“#FFFFFF”和“0xFFFFFF”两种格式的颜色值
function jinzhizhuanhuan(yansezhi) {
    var yansezhi = yansezhi.substr(-6, 6);
    return parseInt(yansezhi, 16);
}
Color.prototype.shangse = function(yansezhi) {
    this.setRGB(jinzhizhuanhuan(yansezhi));
};
MovieClip.prototype.shangse = function(yansezhi) {
    var linshi_color = new Color(this);
    linshi_color.shangse(yansezhi);
};
//%%%%%%%%%%%加载XML文档%%%%%%%%%%%%%//
gundongtiao_xml = new XML();
gundongtiao_xml.ignoreWhite = true;
gundongtiao_xml.load("gundongtiao.xml");
gundongtiao_xml.onLoad = function() {
    var jiedianlujing_xml = gundongtiao_xml.firstChild.childNodes;
    //滚动条背景参数
    with (jiedianlujing_xml[0]) {
        var gundongtiaobeijingse = jinzhizhuanhuan(attributes["背景色"]);
        var gundongtiaotoumingdu = attributes["背景透明度"];
        var gundongtiaobiankuangse = jinzhizhuanhuan(attributes["边框色"]);
        var gundongtiaobiankuangtoumingdou = attributes["边框透明度"];
        var gundongtiaobiankuangcuxi = attributes["边框粗细"];
        var gundongtiaokuan = attributes["宽"];
    }
    //方块参数
    with (jiedianlujing_xml[1]) {
        var fangkuaibeijingse = jinzhizhuanhuan(attributes["背景色"]);
        var fangkuaitoumingdu = attributes["背景透明度"];
        var fangkuaibiankuangse = jinzhizhuanhuan(attributes["边框色"]);
        var fangkuaibiankuangtoumingdou = attributes["边框透明度"];
        var fangkuaibiankuangcuxi = attributes["边框粗细"];
    }
    //三角参数
    with (jiedianlujing_xml[2]) {
        var sanjiaoyuanshise = jinzhizhuanhuan(attributes["原始色"]);
        var sanjiaohuodongse = jinzhizhuanhuan(attributes["活动色"]);
        //记录下原始色和活动色，以备在“上”，“下”按钮中使用
        jiluyuanshise = attributes["原始色"];
        jiluhuodongse = attributes["活动色"];
        var sanjiaotoumingdou = attributes["透明度"];
    }
    //滑块参数
    with (jiedianlujing_xml[3]) {
        var huakuaibeijingse = jinzhizhuanhuan(attributes["背景色"]);
        var huakuaitoumingdu = attributes["背景透明度"];
        var huakuaibiankuangse = jinzhizhuanhuan(attributes["边框色"]);
        var huakuaibiankuangto

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