音乐播放器

图片浏览器，可通过鼠标来完成图片放大，缩小，移动等功能-Photo browser, through mouse to complete the image to enlarge, reduce, mobile features

创建InterBase数据库-flash演示-created InterBase database-flash demo

This is a typical task of an engineering informatik class. Have fun reading this

人们在使用SQL时往往会陷入一个误区，即太关注于所得的结果是否正确，而忽略了不同的实现方法之间可能存在的 性能差异，这种性能差异在大型的或是复杂的数据库环境中（如联机事务处理OLTP或决策支持系统DSS）中表现得尤为明 显。笔者在工作实践中发现，不良的SQL往往来自于不恰当的索引设计、不充份的连接条件和不可优化的where子句。在对 它们进行适当的优化后，其运行速度有了明显地提高！下面我将从这三个方面分别进行总结：-people in the use of SQL often fall into the trap, that is too focused on the findings is correct, and ignore a different method may exist between the performance differences, these differences in large or complex database environment (such as online transaction processing or decision support OLTP system DSS) has become even more obvious. In practice I found that the poor tend to SQL from inappropriate design of the index, not fully connected and non-optimal conditions where the phrase. On their proper optimization, and their operating speed has been improved! Now I will be three aspects of this summary :

Java库管理系统旨在帮助简化任务

用vc实现点云文件的加载和显示后，（dxf格式） 如何实现其中一些点的选取和删除的功能， 有没有类似的原代码发我一个，谢谢！-with vc achieve Cloud document loading and after the show, (dxf format) how to achieve some point select and delete functions, there are similar to the original code, I made a, thank you!

#pragma一次

没有任何数据库的销售监测样品。该系统可以登录 3 帐户，管理员，收银员 1 和收银员 2。该系统具有的限制，只有管理员授权在库存中查看其销售剩余的项数。它还具有甚至管理员都可以使用的销售事务。在交易模块中，用户可以选择的产品，然后输入的金额，并查看所有购买产品的客户。这就是全部。

在DATAGRID 里增加CHECKBOX！-Increase in the DataGrid CHECKBOX!

一个漂亮的XPOCX控件-a beautiful XPOCX Controls