diff --git a/Software/Development/Language/Go/Package/OS/Exec/Golang_执行外部程序.md b/Software/Development/Language/Go/Package/OS/Exec/Golang_执行外部程序.md
index 84ae8a1..e19fb8b 100644
--- a/Software/Development/Language/Go/Package/OS/Exec/Golang_执行外部程序.md
+++ b/Software/Development/Language/Go/Package/OS/Exec/Golang_执行外部程序.md
@@ -7,18 +7,18 @@
 ```go
 func MakeCmd(name string, arg ...string) *exec.Cmd {
     cmd := exec.Command(name, arg...)
-    cmd.Env = append(cmd.Env, "USER=root")
-    cmd.Env = append(cmd.Env, "HOME=/home/root")
-    cmd.Env = append(cmd.Env, "SHELL=/bin/sh")
-    cmd.Env = append(cmd.Env, "LOGNAME=root")
-    cmd.Env = append(cmd.Env, "PATH=/usr/local/bin:/usr/bin:/bin:/xt/scripts:/usr/local/sbin:/usr/sbin:/sbin:/xt/scripts")
+    cmd.Env = append(cmd.Env, os.Getenv("USER"))
+    cmd.Env = append(cmd.Env, os.Getenv("HOME"))
+    cmd.Env = append(cmd.Env, os.Getenv("SHELL"))
+    cmd.Env = append(cmd.Env, os.Getenv("LOGNAME"))
+    cmd.Env = append(cmd.Env, os.Getenv("PATH"))
     return cmd
 }
 
 func main() {
     cmd := MakeCmd("ls", "-l", "/")
     output, _ := cmd.Output()
-    fmt.Println(output)
+    fmt.Println(string(output))
 }
 ```