1. 字符串(string)

• 增加元素

set key value [EX seconds] [PX milliseconds] [NX|XX]  EX seconds：为键设置秒级过期时间  PX milliseconds：为键设置毫秒级过期时间  NX：键必须不存在，才可以设置成功，用于添加  XX：键必须存在，才可以设置成功，用于更新

• 删除元素

get key

• 其他

mset key value  mget key

2. 哈希(Hash)

• 设置值

hset key field value

• 获取值

hget

• 删除值

hdel key field

• 其他

hmget key field [field ...]  hmset key field value [field value ...]  hexists key field  hkeys key  hvals key  hgetall key

3. 列表(List)

• 增加元素

rpush key value [value ...]  lpush key value [value ...]

4. 集合(Set)

• 增加元素

sadd key member [member ...]

• 删除值

srem key member [member ...]

5. 有序集合(Sorted Set)

• 增加元素

zadd key [NX|XX] [CH] [INCR] score member [score member ...]

• 删除值

zrem key member [member ...]

• 其他

zscore key member  zrank key member  zrevrank key member  zrange key start stop [WITHSCORES]  zrevrange key start stop [WITHSCORES]