用户验证码登录时，只查询未被删除的账号

app/common/dao/user/UserDao.php

@@ -264,7 +264,7 @@ class UserDao extends BaseDao
      */
     public function accountByUser($account)
     {
-        return User::getDB()->where('account', $account)->find();
+        return User::getDB()->where('account', $account)->where('is_del', 0)->find();
     }
 
     /**