'幼儿园', 1 => '一年级', 2 => '二年级', 3 => '三年级', 4 => '四年级', 5 => '五年级', 6 => '六年级']; public function getLevelAtAttribute($value) { if (is_int($value)) { return self::$level[$value]; } return $value; } public function userData() { return $this->hasOne(User::class, 'id', 'user_id'); } public function getCreatedAtAttribute($value) { $dateTime = new \DateTime($value); // 格式化时间 $formattedTime = $dateTime->format('Y-m-d H:i:s'); return $formattedTime; } public function getUpdatedAtAttribute($value) { $dateTime = new \DateTime($value); // 格式化时间 $formattedTime = $dateTime->format('Y-m-d H:i:s'); return $formattedTime; } }