redis通用命令

select 3#切换数据库3

info#查看redis信息

info replication#查看主从复制状况

keys *#查看所有的key

type key1#查看key数据库类型

exists key1#key是否存在

del key1#删除一个key

rename key key1#重命名

flushdb/flushall#清空数据库

string类型

C:\Users\wsh> localhost:6379> set name jack#设置key_value OK localhost:6379> mset name jack age 23 addr china OK localhost:6379> append key val#追加 (integer) 3 localhost:6379> get name#获取key的值 "jack" localhost:6379> mget name age hobby

1. "jack"

2. "23"

3. (nil) localhost:6379> r.get("name")#python实现返回字符串   

4. Invalid argument(s) localhost:6379> r.mget("name","age","hobby")#返回值列表 Invalid argument(s) localhost:6379> set name jack ex 10#设置key时间10s过期 OK localhost:6379> set name jack nx#不存在时，设置key (nil) localhost:6379> srrlen name (error) ERR unknown command srrlen, with args beginning with: name, localhost:6379> strlen name#获取字符串长度 (integer) 0 localhost:6379> r.strlen("name")#python实现 Invalid argument(s) localhost:6379> r.set("name","jack")#获取字符串分片 Invalid argument(s) localhost:6379> r.getrange("name",0,1) Invalid argument(s) localhost:6379> set name beikehan#设置字符串的片段值 OK localhost:6379> setrange name 1 (error) ERR wrong number of arguments for 'setrange' command localhost:6379> setrange name 1 oo (integer) 8 localhost:6379> r.setrange("name",1,"oo") Invalid argument(s) localhost:6379> set age 23 OK localhost:6379> incr age#数据加1 (integer) 24 localhost:6379> desc age (error) ERR unknown command desc, with args beginning with: age, localhost:6379> decr age#数据减1 (integer) 23 localhost:6379> set age 10 OK localhost:6379> incrby age 5#数据加5 (integer) 15 localhost:6379> decrby age 5#数据减5 (integer) 10 localhost:6379> incrbyfloat age 1,3 (error) ERR value is not a valid float localhost:6379> incrbyfloat age 1.3 "11.30000000000000071" localhost:6379> incrbyfloat age -1.3#转为字符串 "10" localhost:6379> set name jack ex 10#十秒过期 OK localhost:6379> set name jack OK localhost:6379> expire name 10 (integer) 1 localhost:6379> pexpire name 10 (integer) 1 localhost:6379> localhost:6379> ttl name#查看多久过期 (integer) -2 localhost:6379> persist name#设置永不过期 (integer) 0 localhost:6379> set sms_code:1731111111 637905 EX 300#存储生成的短信验证码 OK localhost:6379> set sms_code_flag:1731111111 1 EX 60 OK localhost:6379> get sms_code:1731111111 "637905" localhost:6379> lpush numbers 1 2 3#头插法 (integer) 3 localhost:6379> rpush numbers 8 9 0#尾插法 (integer) 6 localhost:6379> lset key index val (error) WRONGTYPE Operation against a key holding the wrong kind of value localhost:6379> lset key index val (error) WRONGTYPE Operation against a key holding the wrong kind of value

5. 更新列表

6. localhost:6379> lset numbers 5 10 OK

7. 删除列表

8. localhost:6379> lpop numbers "3" localhost:6379> rpop numbers "10" localhost:6379> lrem number 0 2 (integer) 0 localhost:6379> lrem numbers -2 1 (integer) 1 localhost:6379> lrem numbers 2 1 (integer) 0 localhost:6379> ltrim key start stop (error) ERR value is not an integer or out of range localhost:6379> ltrim numbers 2 5 OK

9. 查询列表

10. localhost:6379> lrange numbers 0 -1

11. List类型练习

12. "9" localhost:6379> lrem history:137 0 1 (integer) 0 localhost:6379> lpush history:137 0 1 (integer) 2 localhost:6379> ltrim history:137 0 1 OK localhost:6379> lrange histroy:173 0 -1 (empty list or set)

13. Hash

14. 插入哈希

15. localhost:6379> hset user:123 name jack (integer) 1 localhost:6379> hmset user:123 name xiaomi age 23 gender man OK localhost:6379> hincrby key field increment (error) ERR value is not an integer or out of range localhost:6379> hincrby user:123 age 5 (integer) 28

16. 查询哈希

17. localhost:6379> hget user:123 name "xiaomi" localhost:6379> hgetall user:123

18. "name"

19. "xiaomi"

20. "age"

21. "28"

22. "gender"

23. 删除哈希

24.  localhost:6379> hdel user:123 gender (integer) 1

25. Hash类型练习

26. localhost:6379> hincrby cart_123 3 5 (integer) 5 localhost:6379> hincrby cart_123 3 -2 (integer) 3 localhost:6379> hset cart_123 3 5 (integer) 0 localhost:6379> hgetall cart_123

27. "3"

28. "5"

29. Set

30. 插入集合

31. localhost:6379> hdel cart_123 3 (integer) 1 localhost:6379> sadd workers tom lucy jack (integer) 3

32. 删除集合

33. localhost:6379> srem workers tom (integer) 1

34. 查询集合

35. localhost:6379> scard worders (integer) 0 localhost:6379> smembers key (error) WRONGTYPE Operation against a key holding the wrong kind of value localhost:6379> smembers workers

36. "lucy"

37. "jack" localhost:6379> sismenmber workers tom (error) ERR unknown command sismenmber, with args beginning with: workers, tom, localhost:6379> sismember workers tom (integer) 0

38. Set类型的练习

39. localhost:6379> sadd cart_selected_123 3 (integer) 1 localhost:6379> srem cart_selected_123 3 (integer) 1 localhost:6379> smembers cart_selected_123 (empty list or set) localhost:6379> scord cart_selected_123 (error) ERR unknown command scord, with args beginning with: cart_selected_123,

40. 插入有序集合

41. localhost:6379> zadd salary 10000 jim 8000 Tom 12000 jimi 10000 Hake (integer) 4

42. 删除有序集合

43. localhost:6379> zrem salary Hake (integer) 1 localhost:6379> zremrangebyrank salary 1 2 (integer) 2 localhost:6379> zrange salary 0 -1

44. 更新有序集合

45. "Tom" localhost:6379> zremrangebyscore salary 10 30 (integer) 0 localhost:6379> zrange salary 0 -1

46. 查询有序集合

47. "Tom" localhost:6379> zcard salary (integer) 1 localhost:6379> zcount key min max (error) ERR min or max is not a float localhost:6379> zcount salary Tom (error) ERR wrong number of arguments for 'zcount' command localhost:6379> zcount salary (8000 10000) (error) ERR min or max is not a float localhost:6379> zrank salary Tom (integer) 0 localhost:6379> zrevrank salary Tom (integer) 0 localhost:6379> zscore salary Tom "8000" localhost:6379> zrange salary 0 -1

48. "Tom" localhost:6379> zrange salary 0 -1 withscores

49. "Tom"

50. "8000" localhost:6379> zrevrange key start stop withscores (error) ERR value is not an integer or out of range localhost:6379> zrevrange salary 0 -1

51. "Tom" localhost:6379> zrevrange salary 0 -1 withscores

52. "Tom"

53. "8000" localhost:6379> zrangebyscore salary 8000 20000 limit 2 1 withscores (empty list or set) localhost:6379> zrevrangebyscore key max min withscores (error) ERR min or max is not a float localhost:6379> zrevrangebyscore salary 20000 8000

54. "Tom" localhost:6379> zremvrangebyscore salary 20000 8000 limit 2 1 withscores (error) ERR unknown command zremvrangebyscore, with args beginning with: salary, 20000, 8000, limit, 2, 1, withscores, localhost:6379> zrevrangebyscore salary 20000 8000 limit 2 1 withscores (empty list or set)         

55. Zset练习

56. localhost:6379> zadd score_sheet 30 xue_1 40 xue_2 100 xue_3 87 xue_4 (integer) 4 localhost:6379> zrangebyscore score_sheet 0 60 withscores

57. "xue_1"

58. "30"

59. "xue_2"

60. "40" localhost:6379> zcount score_sheet 60 100 (integer) 2 localhost:6379> zrevrank score_sheet xue_1 (integer) 3 localhost:6379> zrevrange score_sheet 0 -1 withscores

61. "xue_3"

62. "100"

63. "xue_4"

64. "87"

65. "xue_2"

66. "40"

67. "xue_1"

68. "30" localhost:6379>