用于更改系统桌面背景，虽然微软本身有一个动态库提供了这个功能，但是这个库本身系统不带。因此用Delphi编写了这个程序，用于设置自动更换桌面背景...

条形码生成打印(VB.NET2005) =================================== 一个条形码生成代码，所见即所得的条形码标签设计方式，支持批量生成非数字前缀的条码，支持各种标准WINDOWS打印方式的普通打印机和条形码打印机，支持方案的应用。-Print bar code generation (VB.NET2005) =================================== a bar code to generate code, see that is, from the bar code label design, to support non-numeric quantities to generate the bar code prefix, to support a variety of standard forms of general printing WINDOWS printers and bar code printers, supported the application program.

这是一个用阻塞方式的socket 做的聊天程序，使用了多线程和信号量技术，经本人测试程序可以运行。共编程爱好者交流使用-This is a blocking mode of socket used to do the chat program, the use of a multi-thread and semaphore technology, as I can run a test procedure. A total exchange of the use of programming enthusiasts

c#写的基于access2000的选课系统。-c# to write the elective system based access2000.

链表基本操作，包括链表的初始化，创建，插入节点，删除节点，以及冒泡排序等，有完美的操作界面。-List of basic operations, including the initialization list, create, insert node, delete node, as well as the bubble sort, etc., there is a perfect interface.

简单的计算器源码！可以运用+，-，*，/运算，用栈实现的简易计算器-a simple calculator that supports plus, minus, multiple and division. designed by stack.

c#写的一个小时钟程序-written by a small clock procedures

小球碰倒窗口边界，按物理原则反弹。vb开发的小程序-Small ball碰倒window border, according to the physical principles of a rebound. vb development of small programs

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给定一个矩形，把这个矩形拆分成若干个正方形，这些正方形的边长相同，问怎样拆分，正方形的边长是最大的，并把这个边长输出来。-given a rectangular, the rectangular split into a number of square, the square-the same side, asking how separation of the square is the largest side length, and the side length output.

OCX在多个平台上的运用。在CE下是可以，这是一个简单的OCX在CE下的运用。-OCX in a number of platform used. The CE can be made, this is a simple OCX CE in the application.