id = $id; $this->usedPercent = $usedPercent; } public function build(): userTrafficWarning { return $this->view('emails.userTrafficWarning')->subject('流量警告')->with(['usedPercent' => $this->usedPercent]); } // 发件失败处理 public function failed(Exception $e): void { NotificationLog::whereId($this->id)->update(['status' => -1, 'error' => $e->getMessage()]); } }