BaoMa/database/migrations/2020_10_16_074031_alter_user_messages_table.php

<?php

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

class AlterUserMessagesTable extends Migration
{
    /**
     * Run the migrations.
     *
     * @return void
     */
    public function up()
    {
        Schema::table('user_messages', function (Blueprint $table) {
            //添加医生id
            $table->integer('docter_id')->after('user_id')->comment('医生ID');
        });
    }

    /**
     * Reverse the migrations.
     *
     * @return void
     */
    public function down()
    {
        Schema::table('orders', function (Blueprint $table) {
            //删除医生id
            $table->dropColumn('docter_id');
        });
    }
}