redis 集合

127.0.0.1:6379> SADD myset1 a b c
(integer) 3
127.0.0.1:6379> SADD web maiziedu.com
(integer) 1
127.0.0.1:6379> SADD web maiziedu.com
(integer) 0
127.0.0.1:6379> SADD web phpfamily.org jd.com
(integer) 2
127.0.0.1:6379> SADD web phpfamily.org jd.com
(integer) 0
127.0.0.1:6379> SADD web phpfamily.org jd.com taobao.com
(integer) 1
127.0.0.1:6379> SMEMBERS web
1) "jd.com"
2) "phpfamily.org"
3) "taobao.com"
4) "maiziedu.com"
127.0.0.1:6379> 

127.0.0.1:6379> SADD web maiziedu.com
(integer) 1
127.0.0.1:6379> SADD web maiziedu.com
(integer) 0
127.0.0.1:6379> SADD web phpfamily.org jd.com
(integer) 2
127.0.0.1:6379> SADD web phpfamily.org jd.com
(integer) 0
127.0.0.1:6379> SADD web phpfamily.org jd.com taobao.com
(integer) 1
127.0.0.1:6379> SMEMBERS web
1) "jd.com"
2) "phpfamily.org"
3) "taobao.com"
4) "maiziedu.com"
127.0.0.1:6379> SISMEMBER web j
(integer) 0
127.0.0.1:6379> SISMEMBER web jd.com
(integer) 1
127.0.0.1:6379> SISMEMBER web taobao
(integer) 0
127.0.0.1:6379> SISMEMBER web taobao.com
(integer) 1
127.0.0.1:6379> SISMEMBER web3 taobao.com
(integer) 0
127.0.0.1:6379> SMEMBERS web
1) "jd.com"
2) "phpfamily.org"
3) "taobao.com"
4) "maiziedu.com"
127.0.0.1:6379> SREM web jd.com
(integer) 1
127.0.0.1:6379> SMEMBERS web
1) "phpfamily.org"
2) "taobao.com"
3) "maiziedu.com"
127.0.0.1:6379> SREM web taobao.com maiziedu.com
(integer) 2
127.0.0.1:6379> SMEMBERS web
1) "phpfamily.org"
127.0.0.1:6379> 

 

127.0.0.1:6379> SADD mycourse php java c python android
(integer) 5
127.0.0.1:6379> SMEMBERS mycourse
1) "python"
2) "java"
3) "c"
4) "php"
5) "android"
127.0.0.1:6379> SPOP mycourse
"android"
127.0.0.1:6379> SPOP mycourse
"c"
127.0.0.1:6379> SMEMBERS mycourse
1) "java"
2) "php"
3) "python"
127.0.0.1:6379> 

127.0.0.1:6379> SMEMBERS mycourse
1) "java"
2) "php"
3) "python"
127.0.0.1:6379> clear
127.0.0.1:6379> SRANDMEMBER mycourse
"python"
127.0.0.1:6379> SRANDMEMBER mycourse
"java"
127.0.0.1:6379> SRANDMEMBER mycourse
"python"
127.0.0.1:6379> SRANDMEMBER mycourse
"php"
127.0.0.1:6379> SRANDMEMBER mycourse
"python"
127.0.0.1:6379> SRANDMEMBER mycourse
"php"
127.0.0.1:6379> SRANDMEMBER mycourse 2
1) "python"
2) "php"
127.0.0.1:6379> SRANDMEMBER mycourse 2
1) "python"
2) "java"
127.0.0.1:6379> SRANDMEMBER mycourse 2
1) "java"
2) "php"
127.0.0.1:6379> SRANDMEMBER mycourse 3
1) "python"
2) "java"
3) "php"
127.0.0.1:6379> SRANDMEMBER mycourse 3
1) "python"
2) "java"
3) "php"
127.0.0.1:6379> SRANDMEMBER mycourse -2
1) "php"
2) "php"
127.0.0.1:6379> SRANDMEMBER mycourse -2
1) "java"
2) "java"
127.0.0.1:6379> SRANDMEMBER mycourse -2
1) "java"
2) "php"
127.0.0.1:6379>