​Redis:在集合中复制键

from loguru import logger
import redis
def conn_redis(db):
    """
    link redis
    :param db:
    :return: Redis Link object
    """
    REDIS_URL = f'redis://:{RedisPASSWD}@{RedisHOST}:{RedisPORT}/{db}'
    redis_client = redis.from_url(REDIS_URL)
    # 验证是否连接
    # print(redis_client.info())
    return redis_client


def get_val(key: str, step):
    """
    get values
    :param step:
    :param key:str
    :return:
    """
    try:
        redis_client = conn_redis(0)
        #  获取键的大小
        key_size = redis_client.scard(key)
        key_type = redis_client.type(key)
        logger.info(f'Key Name: {key}, key Type: {key_type} Key Size: {key_size}')
        page = int(key_size // step) + 1
        for i in range(0, page + 1):
            result = redis_client.sscan(key, i, '*', step)[1]
            yield result
    except Exception as e:
        logger.error(e)


def set_newVal(db):
    redis_client = conn_redis(db)
    redis_client.sadd("NewKey",result)

# help SMEMBERS
SMEMBERS key
summary: Get all the members in a set
since: 1.0.0
group: set

# help SSCAN
SSCAN key cursor [MATCH pattern] [COUNT count]
summary: Incrementally iterate Set elements 增量迭代集合元素
since: 2.8.0
group: set

# help SUNIONSTORE
SUNIONSTORE destination key [key ...]
summary: Add multiple sets and store the resulting set in a key 添加多个集合并将生成的集合存储在一个键中
since: 1.0.0
group: set

# help SDIFFSTORE
SDIFFSTORE destination key [key ...]
summary: Subtract multiple sets and store the resulting set in a key 减去多个集合并将得到的集合存储在一个键中
since: 1.0.0
group: set