<?php
 use Illuminate\Database\Schema\Blueprint; use Illuminate\Database\Migrations\Migration; class CreatePaperQuestion extends Migration { public function up() { Schema::create('paper_question', function (Blueprint $table) { $table->increments('id'); $table->timestamps(); $table->integer('paperId')->nullable()->comment('试卷ID'); $table->integer('questionId')->nullable()->comment('题目ID'); $table->string('score', 400)->nullable()->comment('分数'); $table->unique(['paperId', 'questionId']); }); } public function down() { } } 