$Userdata['user_name'] = $pdata['user_name'];
$Userdata['user_pwd'] = md5($pdata['user_pwd']);
$Userdata['create_time'] = time();
$Userdata['update_time'] = time();
$Userdata['openid'] = '1#'. time();
$Userdata['id'] = uniqid();
$useradd=$User->data($Userdata)->add();


数据库里 user_name 和 user_pwd 空白，其他数据正常