diff --git a/app/command/User.php b/app/command/User.php
index 2e97d6b..8c2fbe0 100755
--- a/app/command/User.php
+++ b/app/command/User.php
@@ -96,7 +96,7 @@ class User extends Command
         $im = $this->getSdk();
         try {
             for($i=313;$i<333;$i++){
-                $mobile = '12600000000'+$i;
+                $mobile = (12600000000+$i).'';
                 $password = \support\Random::build('23456789abcdefghjklmnpqrstuvwxyzABCDEFGHJKLMNPQRSTUVWXYZ',8);
                 $data = [
                     'mobile'    =>  $mobile,