$this->faker->unique()->numberBetween(10000, 99999), 'name' => $this->faker->name(), 'grade' => $this->faker->randomElement(['一年级', '二年级', '三年级']), 'class_name' => $this->faker->randomElement(['一班', '二班', '三班']), 'teacher_id' => null, 'remark' => $this->faker->sentence(), ]; } }