lw_test/app/common/validate/PolicyValidate.php

<?php

namespace app\common\validate;

use think\Validate;

class PolicyValidate extends Validate
{
    protected $rule = [
        'title'      => 'require',
        'content'    => 'require',
        'status'     => 'require',
    ];

    protected $message = [
        'title'      => '标题不能为空',
        'content'    => '内容不能为空',
        'status'     => '请选择状态',
    ];

}