diff --git a/docs/database/redis/redis-data-structures-02.md b/docs/database/redis/redis-data-structures-02.md
index 63486094..8eb75f89 100644
--- a/docs/database/redis/redis-data-structures-02.md
+++ b/docs/database/redis/redis-data-structures-02.md
@@ -123,7 +123,7 @@ HyperLogLog 相关的命令非常少，最常用的也就 3 个。
 
 ### 应用场景
 
-**数量量巨大（百万、千万级别以上）的计数场景**
+**数量巨大（百万、千万级别以上）的计数场景**
 
 - 举例：热门网站每日/每周/每月访问 ip 数统计、热门帖子 uv 统计、
 - 相关命令：`PFADD`、`PFCOUNT` 。
diff --git a/docs/database/redis/redis-questions-01.md b/docs/database/redis/redis-questions-01.md
index 40c266b5..e4ab42bd 100644
--- a/docs/database/redis/redis-questions-01.md
+++ b/docs/database/redis/redis-questions-01.md
@@ -729,7 +729,7 @@ Redis 的定期删除过程是随机的（周期性地随机从设置了过期
 
 Redis 7.2 版本的执行时间阈值是 **25ms**，过期 key 比例设定值是 **10%**。
 
-```java
+```c
 #define ACTIVE_EXPIRE_CYCLE_FAST_DURATION 1000 /* Microseconds. */
 #define ACTIVE_EXPIRE_CYCLE_SLOW_TIME_PERC 25 /* Max % of CPU to use. */
 #define ACTIVE_EXPIRE_CYCLE_ACCEPTABLE_STALE 10 /* % of stale keys after which