一开始，有看看这个，并阅读@Erez答案。

For a beginning, have a look at this, and read @Erez answer, too.

    $(function() {
        $( "#sortable1" ).sortable({
            connectWith: ".connectedSortable",
            remove: function(event, ui) {
                ui.item.clone().appendTo('#sortable2');
                $(this).sortable('cancel');
            }
        }).disableSelection();

    $( "#sortable2" ).sortable({
            connectWith: ".connectedSortable"
        }).disableSelection();
    });