1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
127.0.0.1:6379> setbit sign x 0
(error) ERR bit offset is not an integer or out of range
127.0.0.1:6379> setbit sign 0 0 # 设置一个map（sign） 状态为0
(integer) 0
127.0.0.1:6379> setbit sign 1 0
(integer) 0
127.0.0.1:6379> getbit sign 1
(integer) 0
127.0.0.1:6379> setbit sign 2 1 # 忘map塞入一个bit 状态为1
(integer) 0
127.0.0.1:6379> getbit sign 2
(integer) 1
127.0.0.1:6379> bitcount sign
(integer) 1
127.0.0.1:6379> setbit sign 3 0
(integer) 0
127.0.0.1:6379> setbit sign 4 0
(integer) 0
127.0.0.1:6379> bitcount sign
(integer) 1
127.0.0.1:6379> setbit sign 5 0
(integer) 0
127.0.0.1:6379> setbit sign 6 0
(integer) 0
127.0.0.1:6379> bitcount sign #上面可以看到一共塞入一个状态1，其他都是0，所以统计数量是1
(integer) 1
127.0.0.1:6379> setbit sign 7 0
(integer) 0
127.0.0.1:6379> setbit sign 8
(error) ERR wrong number of arguments for 'setbit' command
127.0.0.1:6379> setbit sign 8 0
(integer) 0
127.0.0.1:6379> bitcount sign
(integer) 1
127.0.0.1:6379> setbit sign 9 1
(integer) 0
127.0.0.1:6379> bitcount sign
(integer) 2
127.0.0.1:6379> setbit sign 10 2
(error) ERR bit is not an integer or out of range
127.0.0.1:6379> setbit sign 10 1
(integer) 0
127.0.0.1:6379> bitcount sign
(integer) 3
127.0.0.1:6379>