以下是我在“Houdini”脚本(http://cferdinandi.github.io/houdini/)中实现这一点的方法:
JavaScript:
(function($) {
    $(function () {
        $('.collapse-toggle').click(function(e) { // When a link or button with the .collapse-toggle class is clicked
            e.preventDefault(); // Prevent the default action from occurring
            var toggle = $(this);
            var dataID = toggle.attr('data-target'); // Get the ID of the target element
            toggle.toggleClass('active'); // Add or remove the '.active' class from the toggle element
            $(dataID).toggleClass('active'); // Add or remove the '.active' class from the target element
        });
    });
})(jQuery);
CSS:
/*  Force pointer on button */
.collapse-toggle {
    cursor: pointer;
}
/*  When expanded, hide "show" text. 
 *  When collapsed, hide "hide" text. */
.active .collapse-text-show,
.collapse-text-hide {
    display: none;
    visibility: hidden;
}
/*  When expanded, show "hide" text. */
.active .collapse-text-hide {
    display: inline;
    visibility: visible;
}
/* Hide the collapsed element */
.collapse {
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    /*  Add animation when content expands and collapses */
    -webkit-transition: opacity 0.35s ease;
       -moz-transition: opacity 0.35s ease;
        -ms-transition: opacity 0.35s ease;
         -o-transition: opacity 0.35s ease;
            transition: opacity 0.35s ease;
}
/*  When collapsed element has the .active class, show it 
 *  Uses max-height instead of display: none to allow for 
 *  CSS3 animations, which don't work on display values. */
.collapse.active {
    max-height: 9999em;
    opacity: 1;
}
HTML(基于您上面的代码):
<button class="collapse-toggle" data-target="#menu_jquery">
    <span class="collapse-text-show">Show Menu</span>
    <span class="collapse-text-hide">Hide Menu</span>
</button>
<div class="collapse" id="menu_jquery">
    <?php #wp_page_menu( 'sort_column=menu_order' ); ?>
</div>