diff --git a/Books/Vim实用技巧/一、入门导读.md b/Books/Vim实用技巧/一、入门导读.md
index e333a7a..f4a3d96 100644
--- a/Books/Vim实用技巧/一、入门导读.md
+++ b/Books/Vim实用技巧/一、入门导读.md
@@ -4,4 +4,7 @@
 | 复合 | 等效 |
 | ---- | ---- |
 | `C`  | `c$` |
-| `s`     |      |
+| `s`  | `cl` |
+| `S`  | `C$` |
+| `I`  | `^i` |
+| `A`  | `$a`     |