即拷即用的loading代码

放在第1帧即可。enjoy!
stop();
var rect1:MovieClip = createRectangle1(150, 3, 0x000000);
var rect2:MovieClip = createRectangle2(152, 5, 0x000000);
rect1._x = (Stage.width - rect1._width) / 2;
rect1._y = (Stage.height - rect1._height) / 2;
rect2._x = (Stage.width - rect2._width) / 2;
rect2._y = (Stage.height - rect2._height) / 2;
onEnterFrame = function () {
rect1._width = _root.getBytesLoaded() / _root.getBytesTotal() * 150;
if (_root.getBytesLoaded() == _root.getBytesTotal()) {
rect1.removeMovieClip();
rect2.removeMovieClip();
delete rect1;
delete rect2;
delete createRectangle1;
delete createRectangle2;
delete onEnterFrame;
play();
}
};
function createRectangle1(width:Number, height:Number, color:Number, scope:MovieClip):MovieClip {
scope = (scope == undefined) ? this : scope;
var depth:Number = scope.getNextHighestDepth();
var mc:MovieClip = scope.createEmptyMovieClip("mc_" + depth, depth);
mc.beginFill(color);
mc.lineTo(0, height);
mc.lineTo(width, height);
mc.lineTo(width, 0);
mc.lineTo(0, 0);
return mc;
}
function createRectangle2(width:Number, height:Number, color:Number, scope:MovieClip):MovieClip {
scope = (scope == undefined) ? this : scope;
var depth:Number = scope.getNextHighestDepth();
var mc:MovieClip = scope.createEmptyMovieClip("mc_" + depth, depth);
mc.lineStyle(color);
mc.moveTo(0, 0);
mc.lineTo(0, height);
mc.lineTo(width, height);
mc.lineTo(width, 0);
mc.lineTo(0, 0);
return mc;
}