xtu_mall/app/admin/validate/links/Links.php

<?php
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// | 链接验证
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namespace app\admin\validate\links;

use think\Validate;

class Links extends Validate
{
    //定义验证规则
    protected $rule = [
        'name|网站名称' => 'require',
        'url|网站链接'  => 'require|url',
    ];
}