site/application/admin/config.php

<?php

return [

    // 视图输出字符串内容替换
    'view_replace_str'       => [
        '__ROOT__'=>'/static/admin/layui2.5.6',
        '__IMAGES__'=>'/static/admin/images',
        '__UPLOAD__'=>'/static/uploads',//上传图片地址
        '__SP__'=>'/static/admin/special',//上传图片地址
    ],



];