/// <summary>
		/// 方法名称: 
		/// 内容描述: ConvertRngArray
		/// 实现流程: 将Excel数据集转换为数组
		/// 作    者: 林付国
		/// 日    期: 2006-5-11 17:45:12
		/// </summary>
		/// <param name="range"></param>
		/// <returns></returns>
		private Object[,] ConvertRngArray(Excel.Range range)
		{
			//Retrieve the data from the range. 
			Object[,] saRet; 
			saRet = (System.Object[,])range.get_Value( Missing.Value ); 
			return saRet;
		}