[{"categoryId":12681,"categoryName":"二手智能机器人","categoryPid":12680,"sortNum":0,"hierarchy":4,"childCategory":[]},{"categoryId":12682,"categoryName":"二手智能家居","categoryPid":12680,"sortNum":1,"hierarchy":4,"childCategory":[]},{"categoryId":12683,"categoryName":"二手智能手环","categoryPid":12680,"sortNum":2,"hierarchy":4,"childCategory":[]},{"categoryId":12684,"categoryName":"二手智能手表","categoryPid":12680,"sortNum":3,"hierarchy":4,"childCategory":[]},{"categoryId":12685,"categoryName":"二手智能飞行器","categoryPid":12680,"sortNum":4,"hierarchy":4,"childCategory":[]},{"categoryId":12686,"categoryName":"二手手写笔","categoryPid":12680,"sortNum":5,"hierarchy":4,"childCategory":[]}]