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"],
