usedcar/app/apis/validate/SubscribeValidator.php

<?php

namespace app\apis\validate;

use think\Validate;

class SubscribeValidator extends Validate
{
    // 规则
    protected $rule = [
        'email' => 'require|email'
    ];

    // 提示
    protected $message = [
        'name.require'  => '姓名不能为空',
        'email.email'   => '邮箱格式不正确'
    ];

    // 场景
    protected $scene = [
        'store' => [
            'email'
        ],

        'update' => [
            
        ]
    ];
}