data_location/town/120112.json

{"120112001":"双港新家园街道","120112100":"咸水沽镇","120112101":"葛沽镇","120112102":"小站镇","120112103":"双港镇","120112104":"辛庄镇","120112106":"双桥河镇","120112107":"八里台镇","120112108":"北闸口镇"}