first(); if (!$cao) { $cao = new Cao(); $cao->field = $field; $cao->save(); } $cao->increment('val'); } } protected function getCreatedAtAttribute($value) { return \Carbon\Carbon::parse($value)->setTimezone('Asia/Shanghai')->format('Y-m-d H:i:s'); } protected function getUpdatedAtAttribute($value) { return \Carbon\Carbon::parse($value)->setTimezone('Asia/Shanghai')->format('Y-m-d H:i:s'); } }