一些功能

app/models/store/StoreExchange.php

@@ -236,7 +236,7 @@ class StoreExchange extends BaseModel
     public static function createCode()
     {
         do {
-            $code = substr(md5(time() . rand(1000, 9999)), 8);
+            $code = 'ticket:' . substr(md5(time() . rand(1000, 9999)), 8);
         } while (self::be(['verify_code' => $code]));
         return $code;
     }