Flashvar使我的swf动画错误

Question

在我正在使用的图片库中，我正在发送一个flashvar来设置显示的“当前”图片。 该图库与iTunes和其他Apple的封面效果类似。

在我的动作脚本代码中，我有这个var var current:Number = 1; 当我改变它以将我的flashvar设置为这样的值时：var current:Number = currentPicture;奇怪的是它工作所以我得到想要的图片作为当前，但当我滚动显示下一张图片时，（那当我向下滚动到上一个时不要出错。所有下一张图片都消失了，..

我在这里粘贴你的代码（修剪为注释中的问题，这里你有init（）和next（）和previous（）函数..我猜问题是在init（）函数中的某个地方，但我不是肯定）：

/*/
iTunes Album Art Viewer
/*/
import flash.display.*;
import flash.geom.*;
import flash.filters.*;
//Change these values below to customize the viewer functionality
var root:MovieClip = this;
var myMO:Object;
var myKO:Object;
var maxSlide:Number = 100;
var current:Number = currentPicture;

var scrollBarStart:Number = 0;
var scrollerDelay:Number = 150;
var scrollBarStop:Number = scrollBar.scroller._width + 49;

function init(Void):Void {
    myMO = {};
    myKO = {};
    Mouse.addListener(myMO);
    Key.addListener(myKO);
    for (var i in infostruc) {
        loader.clear();
        loader.gradient_mc.removeMovieClip();
        loader.attachMovie("default","art",1);
        loader._width = frontCDWidth;
        loader._height = frontCDHeight;
        this["_bmd" + i] = new BitmapData(loader._width, loader._height);
        this["_ref" + i] = new BitmapData(loader._width, loader._height);
        this["_bmd" + i].draw(loader);
        var mc:MovieClip = loader.createEmptyMovieClip("gradient_mc", loader.getNextHighestDepth());
        matrix = new Matrix();
        matrix.createGradientBox(loader._width,loader._height,reflectionRotation / 180 * Math.PI,0,0);
        mc.beginGradientFill(reflectionFillType,reflectionColors,reflectionAlphas,reflectionRatios,matrix,reflectionSpreadMethod,reflectionInterpolationMethod,reflectionFocalPointRatio);
        mc.moveTo(0,0);
        mc.lineTo(0,loader._height);
        mc.lineTo(loader._width,loader._height);
        mc.lineTo(loader._width,0);
        mc.lineTo(0,0);
        mc.endFill();
        loader.art._alpha = reflectionAlpha;
        loader.beginFill(reflectionBackgroundColour);
        loader.moveTo(0,0);
        loader.lineTo(0,loader._height);
        loader.lineTo(loader._width,loader._height);
        loader.lineTo(loader._width,0);
        loader.lineTo(0,0);
        loader.endFill();
        this["_ref" + i].draw(loader);
    }
    // Edit by Matth, Alhadef
    // "The Elevator Door 2"
    for (var i :Number; i <= infostruc.length;i++){
        var cArt:MovieClip = this.createEmptyMovieClip("art" + this.getNextHighestDepth(), this.getNextHighestDepth());
        var rArt:MovieClip = this.createEmptyMovieClip("reflection" + (this.getNextHighestDepth() - 1), this.getNextHighestDepth());
        rArt.id = cArt.id = rArt.cid = cArt.cid = Number(i) + 1;
        cArt.DistortImage(this["_bmd" + cArt.id]);
        controlTheObject(cArt);
        rArt.DistortImage(this["_ref" + cArt.id]);
        controlTheObject(rArt);
        var tmpFilter:BlurFilter = new BlurFilter(reflectionBlurX, reflectionBlurY, reflectionQuality);
        rArt.filterArray = [];
        rArt.filterArray.push(tmpFilter);
        rArt.filters = rArt.filterArray;
    }
    myMO.onMouseWheel = function(delta:Number):Void  {
        if (delta > 0) {
            next();
        } else if (delta <= 0) {
            previous();
        }
    };
    myKO.onKeyDown = function():Void  {
        if (Selection.getFocus() != "_level0.goto") {
            if (Key.isDown(Key.RIGHT)) {
                next();
            } else if (Key.isDown(Key.LEFT)) {
                previous();
            }
        }
    };
    scrollBar.scroller.onPress = function():Void  {
        dist = this._parent._xmouse - this._x;
        this.onMouseMove = function():Void  {
            tmp = 1 + Math.ceil(((this._parent._xmouse - dist) - scrollBarStart) / (scrollBar._width - scrollBarStop) * (infostruc.length - 1));
            if (tmp > infostruc.length) {
                tmp = infostruc.length;
            }
            if (tmp < 1) {
                tmp = 1;
            }
            current = tmp;
            updateInfo();
        };
    };
    scrollBar.scroller.onRelease = scrollBar.scroller.onReleaseOutside = function ():Void {
        stopDrag();
        delete this.onMouseMove;
    };
    scrollBar.left.onPress = function():Void  {
        previous();
        shifter = setInterval(previous, scrollerDelay);
    };
    scrollBar.right.onPress = function():Void  {
        next();
        shifter = setInterval(next, scrollerDelay);
    };
    scrollBar.onMouseUp = function():Void  {
        clearInterval(shifter);
    };
    scrollBar.onMouseDown = function():Void  {
        if (this.hitTest(_xmouse, _ymouse, true) && !this.left.hitTest(_xmouse, _ymouse, true) && !this.right.hitTest(_xmouse, _ymouse, true)) {
            if (this._xmouse < this.scroller._x) {
                previous();
                shifter = setInterval(previous, clickDelay);
            }
            if (this._xmouse > this.scroller._x + this.scroller._width) {
                next();
                shifter = setInterval(next, clickDelay);
            }
        }
    };
    goto.onChanged = function():Void  {
        if (!isNaN(Number(this.text) + 1)) {
            this.text = Math.round(Number(this.text));
            if (this.text > infostruc.length) {
                this.text = infostruc.length;
            }
            if (this.text < 1) {
                this.text = 1;
            }
            current = this.text;
        } else {
            this.text = current;
        }
        updateInfo();
    };
    distance = Number(i);
    mask.removeMovieClip();
    loader.removeMovieClip();
    scrollBar.swapDepths(1101);
    loadNext();
    updateInfo();
}
function next():Void {
    if (current < infostruc.length) {
        current += 1;
    }
    if (current eq infostruc.length) {
        // Set our autodirect switch to go back now.
        autoDirect = 0;
    }
    updateInfo();
}
function previous():Void {
    if (current > 1) {
        current -= 1;
    } 
    if (current == 1) {
        // Set our autodirect switch to go forward now
        autoDirect = 1;
    }
    updateInfo();
}

使用此代码，您会看到导致错误的行var current:Number = currentPicture; ...但是，只有当我们切换到下一张图片时才会出现错误，如果转到上一张图片，则会出现两次接下来，它没有bug。 我不熟悉AS，你可以看到，我不是这个东西的编码器，我尽力理解，我已经成功修改了一些值以放大图片等，但对于这个bug，我不喜欢不明白......