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LRU全称勘误

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docs/database/Redis/redis-all.md
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@ -476,7 +476,7 @@ typedef struct redisDb {
Redis 提供 6 种数据淘汰策略：
1. **volatile-lru（least frequently used）**：从已设置过期时间的数据集（server.db[i].expires）中挑选最近最少使用的数据淘汰
1. **volatile-lru（least recently used）**：从已设置过期时间的数据集（server.db[i].expires）中挑选最近最少使用的数据淘汰
2. **volatile-ttl**：从已设置过期时间的数据集（server.db[i].expires）中挑选将要过期的数据淘汰
3. **volatile-random**：从已设置过期时间的数据集（server.db[i].expires）中任意选择数据淘汰
4. **allkeys-lru（least recently used）**：当内存不足以容纳新写入数据时，在键空间中，移除最近最少使用的 key（这个是最常用的）