百度地图省市对应的code,例如 安徽省 - 合肥市对应的code是340100 ["安徽省","合肥","city","340100"], ["安徽省","安庆","city","340800"], ["安徽省","蚌埠","city","340300"], ["安徽省","亳州","city","341600"], ["安徽省","池州","city","341700"], ["安徽省","滁州","city","341100"], ["安徽省","阜阳","city","341200"],