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实现大小写互换，即输入大写子母程序会自动转成小写子母(Realization case swap)

Calculator using switch

检查EXCEL文档中某字段的重复值，打开文档，选择相应表格及字段(Check EXCEL document the value of a duplicate field, open the document, select the appropriate forms and fields)

定时通知记事本程序，用户可以设定时间及通知内容，程序后台运行，时间到后自动通知(Regularly inform the Notepad program, the user can set the time and content of the notification, the program running in the background after the time to automatically notify)

可将输入的任意十进制数转换为你想要任意进制数。(Any input can be converted to decimal you want any decimal.)

从键盘接收字符串，并统计其中各种字符出现频率！(calculate the frequency of every sinal get from the keyboard!)

校运动会代码（部分），使用VB编程，由学生自己开发(yundonghui)

qt实现的遗传算法 解决最大最小值得问题 (qt genetic algorithm to achieve the maximum and minimum worth solving problems)

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)

这个程序是用堆栈来对火车排序的，该火车的车厢是乱的，经过排序后，火车的车厢变为顺序的，特点是使用VC编写的(This procedure is used to sort the stack to the train, the train is inside the chaos, after sorting, the train carriages into the order, characterized by the use of VC prepared)