#### 1. set,get,mset,mget 赋值取值 --- **set,get 单个赋值和单个取值** ``` 127.0.0.1:6379> set liang 123456 OK 127.0.0.1:6379> get liang "123456" 127.0.0.1:6379> ``` **mset,mget 批量赋值和批量取值** ``` 127.0.0.1:6379> mset one 123 two 456 OK 127.0.0.1:6379> mget one two 1) "123" 2) "456" 127.0.0.1:6379> ``` #### 2. incr,decr,incrby,decrby 用于递减和递减 --- **当存储的字符串为数字时,可使用 incr,decr,incrby,decrby 递增递减** **incr,decr 递增递减 1** ``` 127.0.0.1:6379> set age 20 OK 127.0.0.1:6379> incr age (integer) 21 127.0.0.1:6379> get age "21" 127.0.0.1:6379> decr age (integer) 20 127.0.0.1:6379> get age "20" 127.0.0.1:6379> ``` **incrby,decrby 递增递减指定的步长** ``` 127.0.0.1:6379> set age 20 OK 127.0.0.1:6379> incrby age 5 (integer) 25 127.0.0.1:6379> get age "25" 127.0.0.1:6379> decrby age 5 (integer) 20 127.0.0.1:6379> get age "20" 127.0.0.1:6379> ```