public void DownloadExcel(DateTime date, string stockCode, string stockName) { var httpDownloader = new HTTP(); var url = string.Format("http://market.finance.sina.com.cn/downxls.php?date={0}&symbol={1}", string.Format("{0:yyyy-MM-dd}", date), Convertor.AddStockCodePrefix(stockCode)); var filePath = string.Format(@"F:\Excel\{0}{1}{2:yyyyMMdd}.xls", stockCode, stockName, date); filePath = filePath.Replace("*", "[星]"); if (!File.Exists(filePath)) { var data = httpDownloader.GetFile(url); File.WriteAllBytes(filePath, data); ThreadManager.Pause(seconds: 3); } }