修改列 自己亲自做的 有大用

<?php

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

class ModifyAcceptNumberAndEmainingNumberAndYearToUserinfosTable extends Migration
{
    /**
     * Run the migrations.
     *
     * @return void
     */
    public function up()
    {
        Schema::table('userinfos', function (Blueprint $table) {
            //
            $table->integer('userinfo_accept_number')->unsigned()->change();
            $table->integer('userinfo_emaining_number')->unsigned()->change();
            $table->integer('userinfo_year')->unsigned()->change();
           // $table->timestamp('userinfo_end_day')->change();


        });
    }

    /**
     * Reverse the migrations.
     *
     * @return void
     */
    public function down()
    {
        Schema::table('userinfos', function (Blueprint $table) {
            //
            $table->string('userinfo_accept_number');
            $table->string('userinfo_emaining_number');
            $table->string('userinfo_year');
           // $table->dropColumn('userinfo_end_day');
        });
    }
}