ZREMRANGEBYRANK

Available since 2.0.0.

时间复杂度： O(log(N)+M) with N being the number of elements in the sorted set and M the number of elements removed by the operation.

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.

返回值

Integer reply: the number of elements removed.

例子

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"

ZREMRANGEBYRANK key start stop

返回值

例子