set key1 v1
get key1
exists key1
append key1
strlen key1
incr views
incrby views 10
decrby views 4
decr views
getrange key1 0 4
getrange key1 6 -1
setrange key1 6 python
setex key3 60 abc
ttl key3
setnx key2 "hello,redis"
mset user:1:name "zhangsan" user:1:age 12
mget user:1:name user:1:age
getset user:1:name lisi