对CListCtrl控件进行了一个扩展，使它即可以编辑主项(Item)，又可以编辑子项(SubItem)，并尽量符合CListCtrl的操作习惯。-CListCtrl controls carried out on an extension so that it can edit the main items that the (Item), also can edit the subkey (SubItem), and as far as possible consistent with th