Redis zremrangebyrank 命令

ZREMRANGEBYRANK key start stop

Removes all elements in the sorted set stored at key with rank between start
and stop.
Both start and stop are 0 -based indexes with 0 being the element with
the lowest score.
These indexes can be negative numbers, where they indicate offsets starting at
the element with the highest score.
For example: -1 is the element with the highest score, -2 the element with
the second highest score and so forth.


Integer reply: the number of elements removed.


redis>  ZADD myzset 1 “one”

(integer) 1

redis>  ZADD myzset 2 “two”

(integer) 1

redis>  ZADD myzset 3 “three”

(integer) 1

redis>  ZREMRANGEBYRANK myzset 0 1

(integer) 2

redis>  ZRANGE myzset 0 -1 WITHSCORES

1) "three"
2) "3"