B数组 据 A数组中的数据进行筛选

   aa.forEach(data => {             //遍历A数组

        this.listOfAllData.map(v => {       //遍历B数组

          if (v.sectionId === Number(data)) {        //判断

            paraList.push({                   //push到新数组中
              highwayId: v.highwayId,
              sectionId: v.sectionId
            });

          }

        });

      });