diff --git a/docs/notes/01_c-basic/00_xdx/index.md b/docs/notes/01_c-basic/00_xdx/index.md
index b201d80..59f365d 100644
--- a/docs/notes/01_c-basic/00_xdx/index.md
+++ b/docs/notes/01_c-basic/00_xdx/index.md
@@ -628,10 +628,6 @@ int main() { // 定义主函数
 
 
 
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 # 第四章：C 语言的学习技巧