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  • Redis 常用命令学习二:字符串类型命令

    1.赋值与取值命令

    127.0.0.1:6379> set foo helloredis
    OK
    127.0.0.1:6379> get foo
    "helloredis"
    127.0.0.1:6379> get bar
    (nil)
    

    2.数字键值递增

    127.0.0.1:6379> set int 3
    OK
    127.0.0.1:6379> incr int
    (integer) 4
    127.0.0.1:6379> get int
    "4"
    

    3.增加指定的整数

    127.0.0.1:6379> set int 3
    OK
    127.0.0.1:6379> incr int
    (integer) 4
    127.0.0.1:6379> get int
    "4"
    

    4.减少指定的整数

    127.0.0.1:6379> DECRBY int 12
    (integer) -2
    127.0.0.1:6379> get int
    "-2"
    

    5.向尾部追加值

    127.0.0.1:6379> set redis hello
    OK
    127.0.0.1:6379> append redis ' world'
    (integer) 11
    127.0.0.1:6379> get redis
    "hello world"
    

    6.获取值的字符串长度

    127.0.0.1:6379> strlen int
    (integer) 2
    127.0.0.1:6379> strlen redis
    (integer) 11
    

    7.同时设置获取多个键值

    127.0.0.1:6379> mset k1 233 k2 666 k3 555
    OK
    127.0.0.1:6379> mget k1 k2 k3
    1) "233"
    2) "666"
    3) "555"
    

    8.位操作

    127.0.0.1:6379> set qiao f
    OK
    127.0.0.1:6379> getbit qiao 0
    (integer) 0
    127.0.0.1:6379> setbit qiao 1 0
    (integer) 1
    127.0.0.1:6379> get qiao
    "&"
    127.0.0.1:6379> bitcount qiao
    (integer) 3
    127.0.0.1:6379> bitcount qiao 1 4
    (integer) 0
    127.0.0.1:6379> set sun q
    OK
    127.0.0.1:6379> bitop or qiao sun
    (integer) 1
    
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  • 原文地址:https://www.cnblogs.com/qiaojushuang/p/8111683.html
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