[{"categoryId":12642,"categoryName":"二手CPU","categoryPid":12641,"sortNum":0,"hierarchy":4,"childCategory":[]},{"categoryId":12643,"categoryName":"二手固态硬盘","categoryPid":12641,"sortNum":1,"hierarchy":4,"childCategory":[]},{"categoryId":12644,"categoryName":"二手主板","categoryPid":12641,"sortNum":2,"hierarchy":4,"childCategory":[]},{"categoryId":12645,"categoryName":"二手内存","categoryPid":12641,"sortNum":3,"hierarchy":4,"childCategory":[]},{"categoryId":12646,"categoryName":"二手显卡","categoryPid":12641,"sortNum":4,"hierarchy":4,"childCategory":[]},{"categoryId":12647,"categoryName":"二手机箱","categoryPid":12641,"sortNum":5,"hierarchy":4,"childCategory":[]},{"categoryId":12648,"categoryName":"二手机械硬盘","categoryPid":12641,"sortNum":6,"hierarchy":4,"childCategory":[]},{"categoryId":12649,"categoryName":"二手键盘","categoryPid":12641,"sortNum":7,"hierarchy":4,"childCategory":[]},{"categoryId":12650,"categoryName":"二手鼠标","categoryPid":12641,"sortNum":8,"hierarchy":4,"childCategory":[]},{"categoryId":12651,"categoryName":"二手装机配件","categoryPid":12641,"sortNum":9,"hierarchy":4,"childCategory":[]}]