上面代码的一个补充

管理系统是一个适用于中小型超市管理的软件,没有用户数量限制,主要特点:1所有商品进出可直接扫描（包括进货、零售、盘盈盘亏等处理)。 2支持钱箱功能、零售票据打印功能。3支持多仓区管理。4售货员暂时离开时可以锁屏，必须有密码才可以打开。 5对库存过高或过低时报警。6．不同操作人员设置不同的权限，实现分工明确，严格限制操作员操作权限，避免泄密。7．对顾客发会员卡，在电脑里建立会员资料，记录会员消费信息。实现对常客的管理，顾额在结算可选择普通顾额及会员，若为会员时自动按会员价结算 8．可将供应商、商品等信息录入电脑保存，以供查询、分析。 9． 及时、方便地查询应付款、自定义时间段查询销售业绩、会员消费情况分析、当前库存价值分析等。 10．基于微软的Access构建，具有良好的兼容性和易用性，可以很方便地与Word、Excel交换数据-management system is an application in small and medium-sized supermarket management software, users no quantitative restrictions, the main features : an all goods can directly access scanning (including wholesale, retail, inventory profits, etc. Check processing). Two box support functions, retail paper printing function. Three support multiple warehouse management. 4 salespersons can temporarily leave the lock screen, a password must be open. Five pairs of stocks too high or too low when the alarm. 6. Different operators set up different competencies to achieve a clear division of labor, and strictly limit the operation t

电子商务 能够详细地展示jsp与servlet ,javabean联合工作的mvc模式-e-commerce can display detail jsp and servlet, javabean joint working model of myc

Visual C++6.0，连接、操作mysql数据库。适合初学者。-Visual C++ 6.0, connection, operation mysql database. Suitable for beginners.

使用了外部控件 XLS.ReadWriteII.v1.15-use of external controls XLS.ReadWriteII.v1.15

VC++下调用ACCESS数据库的实例,插入记录,删除记录等-VC called ACCESS database example, insert records, delete records, etc.

.net下开发的访问数据库，并和asp结合-. net access the database under development, and integration and asp

用vc写的宿舍管理系统，向您推荐。-vc used to write the hostel management system to recommend.

这是一个很好的数据库开发系统，请大家仔细阅读-This is a very good database development systems, please read carefully

MonetDB是从主存储器观点开发而来的数据管理系统，使用一个完全分解的存储模块，自动的标题管理，数据类型和搜索加速器的可延伸性，以及SQL-和XML-前台-MonetDB from main memory from the perspective development of data management systems, the use of a fully composted memory modules, automatic management of the title, and search data types can extend the accelerator, and SQL-and XML-prospects

Excel表格是输入输出经常需要涉及到的。操作Excel表格的方式也多种多样。比如，通过调用Excel程序的COM组件对Excel进行操作。但是，这种方式限制较多，且实现难度比较大。但是，用于访问数据库的组件ADO，是支持多种数据源的，其中就包括Excel文件。我们可以通过ADO组件对Excel文件进行读写访问。当然，在.NET平台上对应ADO数据访问组件的是ADO.NET组件。我编写的这个类就是通过ADO.NET实现了Excel文件的读写。由于时间仓促，功能还不是很完善，会在以后有时间的时候进行版本升级。也请各位高手多多批评指正。-Excel spreadsheet input and output is often of the need to address. Operation Excel variety of ways. For example, by calling the Excel COM procedures for the operation of Excel. However, this approach is more limited and more difficult to achieve. However, for access to the database components ADO, is to support multiple data sources, including Excel file. We can ADO components to read and write Excel files visit. Of course,.NET platform counterparts ADO data access components of ADO.NET components. I prepared this category is achieved through ADO.NET read and write Excel files. Because time is so short, the function is still not perfect, will in future have the time for version upgrades. Members also criticized many exp