public function up(){
    Schema::create('dicts', function (Blueprint $table) {
    $table->id();$table->string("title")->comment("标题");
    $table->string("des")->comment("描述");
    $table->integer("sid")->comment("上级标题");
    $table->integer("is_show")->comment("是否显示");
    $table->timestamps();});
    Illuminate\Support\Facades\DB::statement("ALTER TABLE `dicts` comment '字典表'");
 }