thinkphp-butter/app/validate/Page.php

<?php

namespace app\validate;

use think\Validate;

class Page extends Validate
{
    protected $rule =   [
        'page'   => 'require',
        'size'   => 'require',
    ];

    protected $message  =   [
        'page.require'     => 'page不能为空',
        'size.require'     => 'size不能为空',

    ];
}