RailwayTwo/database/seeds/ProjectRoleSeeder.php

<?php

use Illuminate\Database\Seeder;

class ProjectRoleSeeder extends Seeder
{
    /**
     * Run the database seeds.
     *
     * @return void
     */
    public function run()
    {
        for($i = 0; $i < 10; ++$i) {
            \App\Models\ProjectRole::create([
                'name' => '角色' . ($i + 2)
            ]);
        }
    }
}