tool/application/route.php

<?php

// +----------------------------------------------------------------------
// | ThinkPHP [ WE CAN DO IT JUST THINK ]
// +----------------------------------------------------------------------
// | Copyright (c) 2006~2016 http://thinkphp.cn All rights reserved.
// +----------------------------------------------------------------------
// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
// +----------------------------------------------------------------------
// | Author: liu21st <liu21st@gmail.com>
// +----------------------------------------------------------------------

return [
    //别名配置,别名只能是映射到控制器且访问时必须加上请求的方法
    '__alias__'   => [
    ],
    //变量规则
    '__pattern__' => [
    ],
//    Route::domain('admin.thinkphp.cn','admin');
//        域名绑定到模块
        '__domain__'  => [
            'tool.7in6.com' => 'admin',
            'ink.7in6.com' => 'admin',
            'api.7in6.com' => 'api',
        ],

];