Delphi:当基于Delphi的程序运行的时候，对TStringGrid控件中的数据进行计算，以一个“商品入库管理”程序为模板，演示计算过程，让初学者了解原理和思路，计算是在后台进行的，具体的计算代码请参见本例中的Delphi源代码。

-Delphi: Delphi when the program runs based on the data in the control TStringGrid calculated to a "commodity storage management" program as a template, presentation calculation process, so that beginners understand the principles and ideas, calculations are performed in the background specific calculation Please refer to the embodiment of the Delphi source code.