a good function, you can use him to prepare a very nice windows interface

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 :

界面编程，可制作动画光标-programming interface, animation cursor

一个不错的矩形选择区域，可支持拖放-a good choice rectangular region can support drag-and-drop

java写的广本编辑器-wrote the editor-

同过单文档程序实现多文档的效果 同过单文档程序实现多文档的效果 -Analog multi-document

在刚学习VB的时候，实现的一个电子表，功能很简单，但是很繁琐。-VB at the time of the study, to achieve an electronic form, function is very simple, but very cumbersome.

基于MFC设计的一个小计算器软件，带有系统时间。代码注释详细，适合MFC新手参考练习。

应用背景 此程序可实习对话框内每隔一定时间将设定颜色的文字在水平方向和竖直方向显示，呈现出动态文字的效果，具体界面如下，有需要的朋友可以下载，嘿嘿： 关键技术基于MFC对话框的timer定时器应用，同时用puttext函数进行文字显示，并设置其颜色，定时器每隔一定时间显示文字，并切换其位置，整体看起来像是动态文字效果，主要用timer实现，希望对您有用！

php学生成绩管理 如果我跟我个人个人个人给我个哥哥 我二哥王日光

同样是ug二次开发的例子,很典型,是那些初次开发ug 人学习的好例子-same ug second development is an example, typical of those initial development ug learn a good example Thank you