Python-redis Collection Mode

Unordered Collection Sadd

The set set is directly de-Xiao and only outputs the hehe

Sadd names3 Xiao Xiao hehe hehe

Gets all the values of the collection Names3, and the collection cannot get the value as a slice because it is unordered

Smembers Names3

Gets the number of elements in the NAMES3 corresponding collection

SCard Names3

Difference set of two sets:

Sdiff Names3 Names4

The difference set of two sets and the resulting results are assigned to the new set N6:

Sdiffstore N6 names3 Names4

Intersection:

SINTER Names3 Names4

Determine if there are hehe elements inside the NAMES3:

Sismember Names3 hehe

Move from one collection to another:

Smove (SRC, DST, value)

# 将某个成员从一个集合中移动到另外一个集合

Randomly gets the elements inside a collection:

Srandmember Names3

#从name对应的集合中随机获取 numbers 个元素

Srandmember

#在name对应的集合中删除某些值

Srem Names3 hehe

and set:

Sunion Names3 Names4

# 获取多一个name对应的集合的并集，并将结果保存到dest对应的集合中

Sunionstore (Dest,keys, *args)

Sets the names3,names4 result of the collection, which is stored in the collection N7, and then viewed with Sscan

Ordered collection: Zadd

To add a collection z1:

Zadd Z1 Xiaopang 5 jack 8 rain 4 Jane #可以改数字, value cannot be changed

Gets the value of the collection Z1 (ordered by range)

Zrange Z1 0-1 withscores (show numbers)

The element fraction range in the collection:

Zcount Z1 4 10 (4 10 is min max)

# 自增name对应的有序集合的 name 对应的分数

Zincrby (name, value, amount)

# 获取某个值在 name对应的有序集合中的排行（从 0 开始）

Zrank Z1 Xiaopang

# 根据排行范围删除

Zremrangebyrank (name, Min, max)

Get the score based on the name value:

Zscore Z1 Xiaopang

Two sets of intersections, and assigns a value to the new collection:

Zinterstore Z3 2 Z1 Z2 #2是代表有两个集合的交集

Delete key and set the time-out:

Expire (name, time)

Python-redis Collection Mode