crm/app/api/validate/UserMsg.php

<?php

namespace app\api\validate;

use think\Validate;

class UserMsg extends Validate
{
    // 验证规则
    protected $rule = [
        'page'  => 'require|number',
        'limit' => 'require|number'
    ];

    // 验证消息
    protected $message  =   [
        'page.require'     => '缺少page参数',
        'page.number'      => 'page只能是数字',
        'limit.require'    => '缺少limit参数',
        'limit.number'     => 'limit只能是数字'
    ];

    // 验证场景
    protected $scene = [
        'list'  =>  ['page', 'limit'],
    ];
}