baoshi-was/database/factories/BatchFactory.php

<?php

/** @var \Illuminate\Database\Eloquent\Factory $factory */

use App\Batch;
use Faker\Generator as Faker;

$factory->define(Batch::class, function (Faker $faker) {
    return [
        'code' => \Illuminate\Support\Str::random(8).md5(date('Ymd')),
        'type' => "无",
        'wms_created_at' => $faker->dateTime,
        "remark" => \Illuminate\Support\Str::random(20),
    ];
});