baoshi-was/database/seeds/OrderSeed.php

<?php

use Illuminate\Database\Seeder;

class OrderSeed extends Seeder
{
    /**
     * Run the database seeds.
     *
     * @return void
     */
    public function run()
    {
        foreach (now()->subMonth()->daysUntil(now()) as $day) {
            factory(\App\Order::class)->times(random_int(10,12))->create([
                'created_at' => $day->toDateTimeString(),
                'wms_status' => '订单完成',
            ]);
        }

    }
}