redis的基础知识
select切换数据库
remoteSelf:0>select 0
"OK"
dbsize查看当前数据库的key数量
remoteSelf:0>dbsize
"2"
keys查看所有的key
remoteSelf:0>keys *
1) "SUBCRIBEMAP"
2) "test"
remoteSelf:0>select 0
"OK"
remoteSelf:0>dbsize
"2"
remoteSelf:0>keys *
1) "SUBCRIBEMAP"
2) "test"