我有一个具有自动滚动功能的 Flash 垂直菜单，但它滚动得太快，唯一减慢它的方法是增加按钮的高度。
我想用滚动窗格替换代码，以便控制菜单：
我需要删除的代码块然后添加额外的滚动窗格代码
menu_mc_Europe.onEnterFrame = function() {
if (_ymouse>10 && _ymouse<boundry_mc._height && _xmouse>0 && _xmouse<boundry_mc._width) {
ratio = (menu_mc_Europe._height-boundry_mc._height)/(boundry_mc._height);
if (_ymouse>boundry_mc._height/2) {
destScroll = -(_ymouse)*ratio-menu_mc_Europe.bttn_mc._height*ratio;
} else {
destScroll = -(_ymouse)*ratio
}
menu_mc_Europe._y += Math.round((destScroll-menu_mc_Europe._y)/5);
if (menu_mc_Europe._y<-(totalBttns*menu_mc_Europe.bttn_mc._height-boundry_mc._height)) {
menu_mc_Europe._y = -(totalBttns*menu_mc_Europe.bttn_mc._height-boundry_mc._height);
}
} else {
destScroll = 1;
menu_mc_Europe._y += Math.round((destScroll-menu_mc_Europe._y)/5);
}
};