<script type="text/javascript"> var menu = [ {"type_id":1,"name":"大菜","food":[ {"food_id":1,"name":"鱼香肉丝","price":"10"}, {"food_id":2,"name":"红烧肉","price":"11"}, {"food_id":3,"name":"香辣粉","price":"12"} ]}, {"type_id":2,"name":"中菜","food":[ {"food_id":4,"name":"小炒肉","price":"13"}, {"food_id":5,"name":"云吞","price":"14"} ]}, {"type_id":3,"name":"小菜","food":[ {"food_id":6,"name":"雪糕","price":"15"}, {"food_id":7,"name":"黄瓜","price":"16"} ]} ];step 1: 根据menu的数据,动态生成一个二级联运菜单step 2: 实现动态增加、修改、删除菜单dom节点,同时保持dom结构与json保持同步step 3: 实现通过拖拽修改菜单结构(可使用jQuery插件),同时保持dom结构与json保持同步
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