lw_test/app/common/validate/ReservedValidate.php

<?php

namespace app\common\validate;

use think\Validate;

class ReservedValidate extends Validate
{
    protected $rule = [
        'time'    => 'require',
        'content' => 'require',
        'address' => 'require',
    ];

    protected $message = [
        'title'   => '活动时间不能为空',
        'content' => '活动内容不能为空',
        'address' => '活动场地不能为空',
    ];

}