diff --git a/Software/Development/Language/Go/Package/Go_语言_flag_包基本使用.md b/Software/Development/Language/Go/Package/Go_语言_flag_包基本使用.md
index 9058a66..bb6c29b 100644
--- a/Software/Development/Language/Go/Package/Go_语言_flag_包基本使用.md
+++ b/Software/Development/Language/Go/Package/Go_语言_flag_包基本使用.md
@@ -85,7 +85,7 @@ golang 编译的二进制文件的 help 输出实质上 是调用的 flag.Usage(
 // <go src>/src/flag/flag.go:580
 var Usage = func() {
     fmt.Fprintf(CommandLine.Output(), "Usage of %s:\n", os.Args[0])
-    PrintDefaults()
+    flag.PrintDefaults()
 }
 ```