ClipboardChangedControl

说明：  在视图区画正弦函数曲线，并且在一个菜单下以对话框形式输入正弦图的起点和终点坐标。(In the view area sine curve drawing, and in the form of a menu in the dialog box enter the start and end the sine map coordinates.)

VB使用SHEmptyRecycleBin方法， 依赖于shell32.dll动态链接库清空回收站，点击窗口中的按钮即可一键清空回收站。本源码主要是熟悉SHEmptyRecycleBin函数的使用，这个函数不只有清空回收站的功能，还可以统计查询回收站中的文件数量，占用字节大小等。 (VB using the SHEmptyRecycleBin method, relies on the dynamic link library shell32.dll empty the recycle bin, click on the window button quick clear recycling station. The main source is the use of familiar with the SHEmptyRecycleBin function, this function is not only the empty recycle bin function, can also query statistics the number of files in the recycle bin, occupy the byte size etc.. )

界面编程的演示，窗口背景的渐变演示实例。(Programming interface presentation, the window shows examples of the background gradient)

USACO第10题，Marry乳业从一些奶农手中采购牛奶，并且每一位奶农为乳制品加工企业提供的价格是不同的。此外，就像每头奶牛每天只能挤出固定数量的奶，每位奶农每天能提供的牛奶数量是一定的。每天Marry乳业可以从奶农手中采购到小于或者等于奶农最大产量的整数数量的牛奶。 给出Marry乳业每天对牛奶的需求量，还有每位奶农提供的牛奶单价和产量。计算采购足够数量的牛奶所需的最小花费。 (Give the requirement of milk and the amount that they offer.)

日出日落计算,可以根据经纬度计算 日出日落时间(Sunrise and sunset calculations)

VB qq空间留言工具，init模拟发送数据包，模拟腾讯MD5加密传输账号密码(VB the qq space Message tool, init simulated send packets analog Tencent MD5 encrypted transmission account password)

开发助手可以自动的转化工程的大小写字母清洁DEBUG/RELEASE和CVS相信对大家会有很大的帮助 (Development Assistant automatically conversion works cleaning upper and lower case letters DEBUG/RELEASE and CVS believe that there will be of great help to everyone)

本程序可对EXCEL文件进行读写，同时建立了一个专门访问EXCEL文件的类CExcel，可供大家参考。(This procedure can be carried out on the EXCEL file to read and write, while the establishment of a specialized type of access EXCEL file CExcel, for your reference.)

统计字母出现的频率，统计英文文章相应字母出现概率(Statistics the frequency of occurrence of English letters, the letters corresponding to probability statistics)

一个计算器。比电脑上的厉害多了 。就像真实的计算器一样 (A calculator. Powerful than the computer a lot. Just like a real calculator)