Flash 在Action Script 2.0中附加了带有“下一步/前进”按钮的电影控件

我使用attachMovie在舞台上连续调用电影剪辑。我用一个“前进”按钮在前进中滑动它们，但当我想以相同的顺序返回时，一切都会变得一团糟。 你可以看到swf在这里演奏

我对每一帧都进行了编号，这样你们就可以看到当点击“后退”按钮时，画面变得一团糟

// Each of the button functions here call the add_page() function and 
// pass the Identifier of the page that they will display
b_0.onRelease = function() {
next_page( "Video1A_" + page_count);
};

b_1.onRelease = function() {
prev_page( "Video1A_" + page_count);
};

// This function manages the page clips that are attached to content_mc. 
// The variable page_count is used to make sure that each page gets a unique 
// name and depth. It also gives us a way to get the instance name of the 
// last page clip that was created.
var page_count = 1;

// The add_page() function takes the Linkage identifier of the new page to be 
// created as a parameter. 
function next_page( next_page ) {
// Make the name of the last page attached
var old_page = content_mc[ "Video1A_" + page_count ];
// If that page exists remove it by sliding off out of the visible area. 
if ( old_page != undefined ) {
    old_page.slideTo( '-600', '0', 1, '', 0, old_page + '.removeMovieClip()' );
}

// Up page count by 1
page_count ++;

// Attach the new page to content_mc
var new_page = content_mc.attachMovie( next_page, "Video1A_" + page_count,     page_count );
// Position the new page below the visible area
new_page._x = 600;
// slide the new page into the visible area. 
new_page.slideTo( '-600', 0, 2 );
}



// The add_page() function takes the Linkage identifier of the new page to be 
// created as a parameter. 
function prev_page( next_page ) {
// Make the name of the last page attached
var old_page = content_mc[ "Video1A_" + page_count ];

// If that page exists remove it by sliding off out of the visible area. 
if ( old_page != undefined ) {
    old_page.slideTo( '600', '0', 2, '', 0, old_page + '.removeMovieClip()' );
}

// Up page count by 1
page_count --;

// Attach the new page to content_mc
var new_page = content_mc.attachMovie( next_page, "Video1A_" + page_count, page_count );
// Position the new page below the visible area
new_page._x = -600;
// slide the new page into the visible area. 
new_page.slideTo( '600', 0, 2 );
}

粗体部分错误，所附加的电影剪辑是从中传递的下一个_页参数

prev_page( "Video1A_" + page_count);

如果要使page_计数成为一个全局变量，并且有单独的函数用于转到下一页和转到上一页，为什么还要在函数中使用参数

prev_page( "Video1A_" + page_count);