diff --git "a/docs/notes/Leetcode \351\242\230\350\247\243 - \345\217\214\346\214\207\351\222\210.md" "b/docs/notes/Leetcode \351\242\230\350\247\243 - \345\217\214\346\214\207\351\222\210.md"
index 471cc0bd32685bec21ed8aecce7fc6fa83b3c57d..6488aa95b73bd259eaf92f0185e3a0ca428eec19 100644
--- "a/docs/notes/Leetcode \351\242\230\350\247\243 - \345\217\214\346\214\207\351\222\210.md"
+++ "b/docs/notes/Leetcode \351\242\230\350\247\243 - \345\217\214\346\214\207\351\222\210.md"
@@ -111,7 +111,7 @@ Given s = "leetcode", return "leotcede".
- 时间复杂度为 O(N)：只需要遍历所有元素一次
- 空间复杂度 O(1)：只需要使用两个额外变量
- 
+ 
```java
private final static HashSet vowels = new HashSet<>(
diff --git a/docs/pics/ef25ff7c-0f63-420d-8b30-eafbeea35d11.gif b/docs/pics/ef25ff7c-0f63-420d-8b30-eafbeea35d11.gif
new file mode 100644
index 0000000000000000000000000000000000000000..ee7c43a1658de6fcdc0870eafcde7d0337ec2548
Binary files /dev/null and b/docs/pics/ef25ff7c-0f63-420d-8b30-eafbeea35d11.gif differ
diff --git "a/notes/Leetcode \351\242\230\350\247\243 - \345\217\214\346\214\207\351\222\210.md" "b/notes/Leetcode \351\242\230\350\247\243 - \345\217\214\346\214\207\351\222\210.md"
index 2b433bc4cd79cc31b2ec9a0beb5ff9c4cc37bdfc..aa08f977e74aa5fb607cbaebbab6c445ef1addf7 100644
--- "a/notes/Leetcode \351\242\230\350\247\243 - \345\217\214\346\214\207\351\222\210.md"
+++ "b/notes/Leetcode \351\242\230\350\247\243 - \345\217\214\346\214\207\351\222\210.md"
@@ -111,7 +111,7 @@ Given s = "leetcode", return "leotcede".
- 时间复杂度为 O(N)：只需要遍历所有元素一次
- 空间复杂度 O(1)：只需要使用两个额外变量
-
+
```java
private final static HashSet vowels = new HashSet<>(
diff --git a/notes/pics/ef25ff7c-0f63-420d-8b30-eafbeea35d11.gif b/notes/pics/ef25ff7c-0f63-420d-8b30-eafbeea35d11.gif
new file mode 100644
index 0000000000000000000000000000000000000000..ee7c43a1658de6fcdc0870eafcde7d0337ec2548
Binary files /dev/null and b/notes/pics/ef25ff7c-0f63-420d-8b30-eafbeea35d11.gif differ
