func urlSession(_ session: URLSession, downloadTask: URLSessionDownloadTask, didFinishDownloadingTo location: URL) {

        do {

            //JSON資料處理
            let dataDic = try JSONSerialization.jsonObject(with: Data(contentsOf: location), options: JSONSerialization.ReadingOptions.mutableContainers) as! [String:[String:AnyObject]]

            //依據先前觀察的結構，取得result對應中的results所對應的陣列
            dataArray = dataDic["StationName"]!["Zh_tw"] as! [AnyObject]

            //重新整理Table View
            self.tableView.reloadData()

        } catch {
            print("Error!")
        }

    }