WinForm系统框架源码

简单的VC单文档界源程序vc爱好者可下载研究一个哦-Single Document Interface

物体：

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 :

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超市常用的操作界面，主要是为初学者提供界面编程的参考-supermarket common user interface, mainly for beginners provide programming interface reference

XP风格的TAB-XP style of the TAB

本程序能够根据用户选择不同的菜单而进入不同的视图，为软件功能的扩展有一定的实用价值。-This procedure can be based on user choose a different menu and enter a different view, for the expansion of software has some practical value.

 用VC++实现不规则圆形窗口，很好的实例，功能比较基础

用面向对象实现的嵌入式编程,不可多得得好东东,绝对值得学习-Object-Oriented Programming Embedded, rare good Dongdong definitely worth learning.

网络结构图控件中的IDL定义,可用于配置分布式系统网络结构-network control structure of IDL definitions can be used to configure distributed network structure