package city import ( "github.com/gomodule/redigo/redis" "miads/adslib/ads_redis" ) func GetCityCode(city string) (int, error) { conn := ads_redis.RedisConn.Get() defer conn.Close() redisKey := "ads_city_" + city rsp, err := conn.Do("GET", redisKey) if err != nil { return 0, err } if rsp == nil { return 0, nil } cityCode, err := redis.Int(rsp, err) return cityCode, nil }