community-manage/database/migrations/2019_06_03_162527_crate_table_post_imgs.php

<?php

use Illuminate\Support\Facades\Schema;
use Illuminate\Database\Schema\Blueprint;
use Illuminate\Database\Migrations\Migration;

class CrateTablePostImgs extends Migration
{
    /**
     * Run the migrations.
     *
     * @return void
     */
    public function up()
    {
        Schema::create('post_imgs', function (Blueprint $table) {
            $table->bigIncrements('id');

            $table->integer('post_id')
                ->index('post_id')
                ->comment('内容id');

            $table->string('img', 255)
                ->default('')
                ->comment('图片');

            $table->softDeletes();
            
            $table->timestamps();
        });
    }

    /**
     * Reverse the migrations.
     *
     * @return void
     */
    public function down()
    {
        Schema::dropIfExists('post_imgs');
    }
}