python連線redis 以及redis操作
阿新 • • 發佈:2018-12-21
import redis r = redis.StrictRedis(host='127.0.0.1',port=6379,db=0,decode_responses=True,password='123456') #r.set('name','test') #print(r.get('name')) #string pipe = r.pipeline() #減少對伺服器的請求數 #減少伺服器客戶端之間連線損耗 pipe.set('name','orange') pipe.set('name1','apple') pipe.set('name2','pear') pipe.execute() print(r.get('name1'))
puthon操作string
r = redis.StrictRedis(host='127.0.0.1',port=6379,db=0,decode_responses=True,password='123456') ''' set key value SETEX key seconds value MSET key value [key value ...] GET key MGET key [key ...] INCR key INCRBY key increment DECR key DECRBY key decrement STRLEN key APPEND key value
python 操作hash
r.hset('namees','kangbazi','ming') 27.0.0.1:6379> hset student name 'feifei' 格式: hset 字典名 key value (integer) 1 127.0.0.1:6379> hset student age 20 (integer) 1 127.0.0.1:6379> hset student sex 'girl' (integer) 1 127.0.0.1:6379> hset student height '1.75m' (integer) 1 127.0.0.1:6379> hget student age ——》獲取: hget 字典名 key "20" 127.0.0.1:6379> type student —》 判斷student的型別 hash 127.0.0.1:6379> hget student height "1.75m" 127.0.0.1:6379> hmset book bname 'python' author 'jack' price 50 publish 'beijing' ——》hmset 字典名 key value key value。。。 OK 127.0.0.1:6379> hget book author "jack" 127.0.0.1:6379> hmget book author bname ——》 hmget 字典名 key key key 127.0.0.1:6379> hkeys book —》 獲取鍵們 1) "bname" 2) "author" 3) "price" 4) "publish" 127.0.0.1:6379> hvals book ——》 獲取值們 1) "python" 2) "jack" 3) "50" 4) "beijing" 127.0.0.1:6379> hgetall book —》 獲取鍵值對 1) "bname" 2) "python" 3) "author" 4) "jack" 5) "price" 6) "50" 7) "publish" 8) "beijing" 127.0.0.1:6379> hlen book ——》獲取hash 字典長度 (integer) 4 127.0.0.1:6379> hexists book author —》 判斷某個鍵是否存在 (integer) 1 127.0.0.1:6379> hexists book author1 (integer) 0 127.0.0.1:6379> hdel book publish ——》 刪除某個鍵 (integer) 1 127.0.0.1:6379> hlen book (integer) 3
python此操作list
127.0.0.1:6379> lpush myqueue 8 ——》列表的左側新增
(integer) 1
127.0.0.1:6379> lpush myqueue 9
(integer) 2
127.0.0.1:6379> lpush myqueue 7
(integer) 3
127.0.0.1:6379> lpush myqueue 3
(integer) 4
127.0.0.1:6379> lpush myqueue 5
(integer) 5
127.0.0.1:6379> lpush myqueue 6
(integer) 6
127.0.0.1:6379> lrange myqueue 0 -1 ——》 檢視列表的資料 lrange 列表名 0 -1 0 表示開頭 -1 表示的是結尾
1) "6"
2) "5"
3) "3"
4) "7"
5) "9"
6) "8"
127.0.0.1:6379> rpush muqueue 'good' ——》右側新增元素
(integer) 1
127.0.0.1:6379> rpush muqueue 'happy'
(integer) 2
127.0.0.1:6379> rpush muqueue 'hello'
(integer) 3
127.0.0.1:6379> rpush muqueue 'world'
(integer) 4
127.0.0.1:6379> lrange myqueue 0 -1
1) "6"
2) "5"
3) "3"
4) "7"
5) "9"
6) "8"
127.0.0.1:6379> lrange muqueue 0 -1
1) "good"
2) "happy"
3) "hello"
4) "world"
127.0.0.1:6379> lpop myqueue ——》 左側彈出元素,返回值就是彈出元素
"6"
127.0.0.1:6379> rpop myqueue
"8"
127.0.0.1:6379> lrange myqueue 0 -1
1) "5"
2) "3"
3) "7"
4) "9"
127.0.0.1:6379> linsert myqueue before 7 100 ——》指定位置新增元素 結合before after 7參照元素 100要新增的值
(integer) 5
127.0.0.1:6379> lrange myqueue 0 -1
1) "5"
2) "3"
3) "100"
4) "7"
5) "9"
127.0.0.1:6379> linsert myqueue after 7 88
(integer) 6
127.0.0.1:6379> lrange myqueue 0 -1
1) "5"
2) "3"
3) "100"
4) "7"
5) "88"
6) "9"
127.0.0.1:6379> lindex muqueue 1 ——》1 就是下標位置 根據位置獲取對應的元素
"happy"
127.0.0.1:6379> lrange muqueue 0 -1
1) "good"
2) "happy"
3) "hello"
4) "world"
127.0.0.1:6379> lset muqueue 1 'haha' ——》 指定位置修改元素 1 位置 ‘haha’ 新的value值
OK
127.0.0.1:6379> lrange muqueue 0 -1
1) "good"
2) "haha"
3) "hello"
4) "world"
127.0.0.1:6379>
分頁:
127.0.0.1:6379> lrange myqueue 0 -1
1) "5"
2) "3"
3) "100"
4) "7"
5) "88"
6) "9"
127.0.0.1:6379> lrange myqueue 0 1 指定下標獲取元素 包前start —0 包後end—1
1) "5"
2) "3"
127.0.0.1:6379> lrange myqueue 2 3
1) "100"
2) "7"
127.0.0.1:6379> lrange myqueue 4 6
1) "88"
2) "9"
127.0.0.1:6379> lrange myqueue 1 5
1) "3"
2) "100"
3) "7"
4) "88"
5) "9"
127.0.0.1:6379> ltrim myqueue 0 3 ——》 截斷list列表
OK
127.0.0.1:6379> lrange myqueue 0 -1
1) "5"
2) "3"
3) "100"
4) "7" ——》 只剩下 5 3 100 7
python 操作set
set = {1,’1345688’}
127.0.0.1:6379> sadd set1 1,4,7,8,1,4,8,8,8,8,1 —>set1 表示集合名字 後面的就是元素(整體元素)
(integer) 1
127.0.0.1:6379> sadd set1 1 4 7 8 8 —》 一次新增多個元素
(integer) 3
127.0.0.1:6379> smembers set1 —》檢視元素
1) "7"
2) "1"
3) "1,4,7,8,1,4,8,8,8,8,1"
4) "4"
5) "8"
127.0.0.1:6379> smembers set1
1) "1,4,7,8,1,4,8,8,8,8,1"
127.0.0.1:6379> sadd set1 1
(integer) 1
127.0.0.1:6379> smembers set1
1) "1"
2) "1,4,7,8,1,4,8,8,8,8,1"
127.0.0.1:6379> sadd set1 1
(integer) 0
127.0.0.1:6379> smembers set1
1) "1"
2) "1,4,7,8,1,4,8,8,8,8,1"
127.0.0.1:6379> sadd set1 1,4,7,8,1,4,8,8,8,8,1
(integer) 0
127.0.0.1:6379> sismember set1 1 —》 判斷元素1 是否在set1集合中 返回值1 在 返回0 不在
(integer) 1
127.0.0.1:6379> sismember set1 6
(integer) 0
127.0.0.1:6379>
127.0.0.1:6379> scard set1 —》獲取集合長度
(integer) 5
127.0.0.1:6379> sinter set1 set2 —》交集
1) "1"
2) "4"
127.0.0.1:6379> sdiff set1 set2 —》差集
1) "8"
2) "7"
3) "1,4,7,8,1,4,8,8,8,8,1"
127.0.0.1:6379> sunion set1 set2 —》並集
1) "4"
2) "8"
3) "1,4,7,8,1,4,8,8,8,8,1"
4) "1"
5) "5"
6) "7"
python 操作zset
127.0.0.1:6379> zadd zset8 1 ‘a’ 2 ‘b’ … —> 向zset8中新增權重和對應的元素
1) "a"
2) "c"
3) "b"
4) "y"
5) "f"
127.0.0.1:6379> zadd zset8 1 'k' ——》 新增權重值是1 的元素‘k’ 到zset8中
(integer) 1
127.0.0.1:6379> zrange zset8 0 -1
1) "a"
2) "c"
3) "k"
4) "b"
5) "y"
6) "f"
127.0.0.1:6379> zcount zset8 1 2 ——》 檢視權重值在1,2之間的元素有多少
(integer) 5
127.0.0.1:6379> zscore zset8 k 找‘k’對應的權重
"1"
127.0.0.1:6379> zadd zset3 1 'ee' 1 'uu'
(integer) 2
127.0.0.1:6379> expire zset3 3 —》設定zset3的過期時間時3秒
(integer) 1
127.0.0.1:6379> zcard zest
(integer) 0
127.0.0.1:6379> ttl zset8 ——》 檢視zset8的過期時間 如果是-1 沒有限制
(integer) -1