xinglian/application/admin/lang/zh-cn/usersign.php

<?php

return [
    'Id'            => 'ID',
    'Uid'           => 'uid',
    'Times'         => '第几次',
    'Goldnum'       => '金币数量',
    'Createtime'    => '签到时间',
    'User.username' => '用户名'
];