怎么好象下载不了

高手都去哪了？

我帮你改了一下。 你照着改改吧。
grav=10;
p.mass=50;
p.onEnterFrame=pMove;
numMoons=10;
for(i=0;i<numMoons;i++){
    moon=attachMovie("moon", "m"+i, i);
    moon.onEnterFrame=orbit;
    moon._x=Math.random()*400;
    moon._y=Math.random()*100;
    moon.mass=1;
}
function orbit(){
    var dx = p._x-this._x;
    var dy=p._y-this._y;
    var dist=Math.sqrt(dx*dx+dy*dy);
    var force=(p.mass+this.mass)*grav/(dist*dist);
    var acc=force/this.mass;
    this.vx+=acc*dx/dist;
    this.vy+=acc*dy/dist;
    var pacc=force/p.mass;
    p.vx-=pacc*dx/dist;
    p.vy-=pacc*dy/dist;
    if(dist<this._width/2+p._width/2){
        var angle=Math.atan2(dy, dx);
        this._x=p._x-Math.cos(angle)*(this._width/2+p._width/2);
        this._y=p._y-Math.sin(angle)*(this._width/2+p._width/2);
        var speed=Math.sqrt(this.vx*this.vx+this.vy*this.vy);
        var ax=Math.cos(angle)*speed;
        var ay=Math.sin(angle)*speed;
        this.vx=-ax*.8;
        this.vy=-ax*.8;
        p.vx+=ax*.02;
        p.vy+=ay*.02;
    }
    this._x+=this.vx;
    this._y+=this.vy;
    if(this._x>400){
        this._x=400;
        this.vx*=-1;
    }else if(this._x<25){
        this._x=25;
        this.vx*=-1;
    }
    if(this._y>100){
        this._y=100;
        this.vy*=-1;
    } else if(this._y<25){
        this._y=25;
        this.vy*=-1;
    }
}
function pMove(){
    this._x+=this.vx;
    this._y+=this.vy;
    if(this._x>400){
        this._x=400;
        this.vx*=-1;
    }else if(this._x<50){
        this._x=50;
        this.vx*=-1;
    }
    if(this._y>100){
        this._y=100;
        this.vy*=-1;
    } else if(this._y<50){
        this._y=50;
        this.vy*=-1;
    }
}

可以说说是怎么看的么