diff --git a/program/c_cpp/CodeSpecification.md b/program/c_cpp/CodeSpecification.md
index 0b89b5b..aa6bd91 100644
--- a/program/c_cpp/CodeSpecification.md
+++ b/program/c_cpp/CodeSpecification.md
@@ -13,7 +13,6 @@
 |全大写         |常量,宏定义             |
 |`g_`开头       |全局变量                |
 |首字母大写     |结构,类                 |
-|`_`开头        |非接口函数              |
 
 ---