ls/database/migrations/2018_07_31_063125_create_problems_table.php

<?php

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

class CreateProblemsTable extends Migration
{
    /**
     * Run the migrations.
     *
     * @return void
     */
    public function up()
    {
        Schema::create('problems', function (Blueprint $table) {
            $table->increments('id');
            $table->integer('type')->comment('类型');
            $table->text('problem')->comment('问题');
            $table->text('answer')->comment('回答');
            $table->integer('create_id')->comment('创建者ID');
            $table->integer('update_id')->comment('更新者ID');
            $table->timestamps();
        });
    }

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