Flash Loading 加载动画效果代码

 只要将下列代码放在第1帧即可
注：测试方法 连续按两次键盘CTRL+Enter即可看到效果
[code]
// 设置 Loading 进度条的宽、高、颜色（黑色）
var loading_width = 200;
var loading_height = 3;
var loading_color = 0x000000;
var rect1 = createRectangle(this, loading_width, loading_height, loading_color, true);
var rect2 = createRectangle(this, loading_width, loading_height, loading_color, false);
rect1._x = (Stage.width - loading_width) / 2;
rect1._y = (Stage.height - loading_height) / 2;
rect2._x = rect1._x;
rect2._y = rect1._y;
this.onEnterFrame = function ()
{
    rect1._width = _root.getBytesLoaded() / _root.getBytesTotal() * loading_width;
    if (_root.getBytesLoaded() == _root.getBytesTotal()) {
        rect1.removeMovieClip();
        rect2.removeMovieClip();
        delete rect1;
        delete rect2;
        delete this.onEnterFrame;
        play();
    }
};
function createRectangle(scope, w, h, color, is_fill)
{
    var l = scope.getNextHighestDepth();
    var _mc = scope.createEmptyMovieClip("mc_" + l, l);
    with (_mc) {
        lineStyle(0,color,100);
        if (is_fill) {
            beginFill(color,100);
        }
        lineTo(0,h);
        lineTo(w,h);
        lineTo(w,0);
        lineTo(0,0);
        endFill();
    }
    return _mc;
}
stop();
[/code]