var threeSelectData={'一级类目':{val:'',items:{'二级类目':{val:'',items:{'三级类目':''}}}},'装饰配饰':{val:'495',items:{'地毯':{val:'496',items:{'手工地毯':'497','机织地毯':'498'}}}},'pvc':{val:'12003',items:{'pvc塑胶地板':{val:'12004',items:{'专业室外运动地板':'12005'}}}},'地板':{val:'12012',items:{'锁扣地板':{val:'12013',items:{}}}}};