zrange
zrange 根据索引查看有序集合中的元素
127.0.0.1:6379[1]> zrange myzset 0 -1 1) "user:1" 2) "user:2" 3) "user:3" 4) "user:4" 5) "user:5" 127.0.0.1:6379[1]> zrange myzset 0 -1 withscores 1) "user:1" 2) "10" 3) "user:2" 4) "20" 5) "user:3" 6) "50" 7) "user:4" 8) "80" 9) "user:5" 10) "120"