diff --git a/app/common.php b/app/common.php
index 7144ea6..d66363a 100644
--- a/app/common.php
+++ b/app/common.php
@@ -1,7 +1,38 @@
 <?php
 // 应用公共文件
-include "../app/CodeAndMessage.php";
+
 use think\facade\Db;
+
+
+//系统或是代码错误
+const SYSTEM_ERROR_CODE = 999999;
+const SYSTEM_ERROR_MESSAGE = "系统繁忙";
+
+const SUCCESS_CODE = 0;
+const SUCCESS_MESSAGE = "操作成功";
+
+const ERROR_CODE = 1;
+const ERROR_MESSAGE = "具体提示";
+
+const NEED_LOGIN = 20000;
+const NEED_LOGIN_MESSAGE = "需要登录后再操作";
+
+const MISSING_PARAMETER = 30000;
+const MISSING_PARAMETER_MESSAGE = "缺少参数";
+
+const TYPE_PARAMETER = 30001;
+const TYPE_PARAMETER_MESSAGE = "参数类型错误";
+
+const TOKEN_ERROR = 40001;
+const TOKEN_ERROR_MESSAGE = "token错误";
+
+
+const SIGN_ERROR = 40002;
+const SIGN_ERROR_MESSAGE = "签名错误";
+
+const TIMEOUT_ERROR = 40004;
+const TIMEOUT_ERROR_MESSAGE = "数据超时";
+
 // 获取客户端IP
 if(!function_exists('get_client_ip')){
     function get_client_ip(){