redis 127.0.0.1:6379> set name "zhangshan" //给key name赋值zhangshan OK redis 127.0.0.1:6379> get name "zhangshan" getrange 字符串截取 redis 127.0.0.1:6379> getrange name 0 3 //截取 0-3的子字符串 "zhan" getset 设置新值并返回老值 redis 127.0.0.1:6379> getset name "wangwu" //给指定的key赋值并返回之前的值 "zhangshan" redis 127.0.0.1:6379> get name //再查看name的值变成了wamgwu "wangwu" setex 设置key值并设置过期时间 redis 127.0.0.1:6379> setex name 30 "zbb" //设置key为name的key的值为zbb,并设置过期时间3秒 OK redis 127.0.0.1:6379> get name "zbb" redis 127.0.0.1:6379> ttl name //剩下13秒后过期 (integer) 13 strlen 获得字符串值的长度。 redis 127.0.0.1:6379> set name "zbbbbb" OK redis 127.0.0.1:6379> strlen name //获得key为name存贮的字符串值的长度 (integer) 6 mset 同时设置多个键值对 redis 127.0.0.1:6379> mset key1 "c++" key2 "c#" key3 "java" key4 "node.js" OK redis 127.0.0.1:6379> get key1 "c++" redis 127.0.0.1:6379> get key2 "c#" redis 127.0.0.1:6379> get key3 "java" redis 127.0.0.1:6379> get key4 "node.js" append 追加字符串 redis 127.0.0.1:6379> set zbb_key "ku bi cheng xu yuan !" OK redis 127.0.0.1:6379> append zbb_key " yes we all" //在key zbb_key存贮的字符串后追加" yes we all" (integer) 29 redis 127.0.0.1:6379> get zbb_key //再查看结果,已经追加上去了 "ku bi cheng xu yuan ! yes we all" redis 127.0.0.1:6379>
redis数据类型操作之String类型常用操作
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