// 添加某一天的股票信息
        public void AddDayStock(DateTime dt, IStockData stock)
        {
            StockPoint pt = new StockPoint(dt, stock.MaxPrice, stock.MinPrice,
                                           stock.StartPrice, stock.EndPrice, stock.VolumeHand);

            _Stocks.Add(dt, pt);
        }
        // ���ijһ��Ĺ�Ʊ��Ϣ
        public void AddDayStock(DateTime dt, IStockData stock)
        {
            StockPoint pt = new StockPoint(dt, stock.MaxPrice, stock.MinPrice,
                stock.StartPrice, stock.EndPrice, stock.VolumeHand);

            _Stocks.Add(dt, pt);
        }