baoshi-was/database/factories/OwnerPriceLogisticDetailFactory.php

<?php

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

use App\OwnerPriceLogisticDetail;
use Faker\Generator as Faker;

$factory->define(OwnerPriceLogisticDetail::class, function (Faker $faker) {
    $province = \App\Province::query()->first();
    $city = \App\City::query()->where("province_id",$province->id)->first();
    return [
//        "owner_price_logistic_id" => factory(\App\OwnerPriceLogistic::class),  //物流计费
//        "unit_id" => factory(\App\Unit::class),                  //单位ID
        "range" => "0-5",                    //区间
        "province_id" => $province->id,              //省份ID
        "city_id" => $city->id,                  //城市ID
        "unit_price" => mt_rand(1,36) / 3,               //单价
        "delivery_fee" => mt_rand(1,136) / 3,             //送货费
        "initial_fee" => mt_rand(1,136) / 3,              //起始计费
        "initial_amount" => mt_rand(1,136) / 3,           //起始计数
        "rate" =>  mt_rand(1,136) / 3,                       //费率
    ];
});