diff --git a/bin/uuid.sh b/bin/uuid.sh
index 3db3946..4573a36 100644
--- a/bin/uuid.sh
+++ b/bin/uuid.sh
@@ -1,15 +1,14 @@
 #!/bin/bash
 
 update_uuid(){
-  local script_dir="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"  # 脚本文件夹绝对路径
-  local config_file="$script_dir/../config/config.json"
+  local SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"  # 脚本文件夹绝对路径
+  local CONFIG_FILE="$SCRIPT_DIR/../config/config.json"
 
   # 生成 UUID
-  local uuid=$(cat /proc/sys/kernel/random/uuid)
+  local UUID=$(cat /proc/sys/kernel/random/uuid)
 
   # 修改 UUID
-  sed -i 's/你的UUID/'"$uuid"'/g' "$config_file"
+  sed -i 's/你的UUID/'"$UUID"'/g' "$CONFIG_FILE"
 
   echo "设置UUID成功."
 }
-