Redis ZINTERSTORE命令计算numkeys排序按指定键给出集合的交集,并将结果存储在目的地。它是强制性的传递的输入键和其他(任选)参数之前,以提供输入键(numkeys)的数量。
返回整数,在目标中所得到的排序的集合中的元素的数量。
redis ZINTERSTORE命令的基本语法如下所示:
redis 127.0.0.1:6379> ZINTERSTORE KEY INCREMENT MEMBER
redis 127.0.0.1:6379> ZADD myset 1 "hello" (integer) 1 redis 127.0.0.1:6379> ZADD myset 2 "world" (integer) 1 redis 127.0.0.1:6379> ZADD myset2 1 "hello" (integer) 1 redis 127.0.0.1:6379> ZADD myset2 2 "world" (integer) 1 redis 127.0.0.1:6379> ZADD myset2 3 "foo" (integer) 1 redis 127.0.0.1:6379> ZINTERSTORE out 2 myset1 myset2 WEIGHTS 2 3" (integer) 3 redis 127.0.0.1:6379> ZRANGE out 0 -1 WITHSCORES 1) "hello" 2) "5" 3) "world" 4) "10"