GDP

首先通过文件操作，读取文件内容，把字符逐个提取后统计字符频率，建立哈夫曼树和进行哈夫曼编码，当然这是根据ASCII编码来将字符转换为二进制，然后实现前缀编码，然后把编码后的使用二进制流写入相应文件(First through file operations, read the file content, the characters one by one after extracting character frequency statistics, establish a Huffman tree and Huffman encoding, and, of course, this is according to ASCII code to convert characters to the binary, then realize the prefix encoding, and then the encoded using binary stream into the corresponding files )

Excel 读写和生成的工具, 里面包装成了一个读取Excel里面的每一列和每一行的数据方法供参考(Excel literacy and generating tool, inside packaging has become an inside Excel read out each and every line of data for the reference method)

软件技术基础中的十进制转二进制问题，简单的将十进制数转化为二进制数。 (Software technology base in decimal to binary problem, a simple decimal number into a binary number.)

标准c的重要的头文件，便于在程序编写中查阅，很有帮助的(standards of the first important document, prepared to facilitate the inspection process, helpful)

windows xp字库提取并可以转化成任意用于显示屏显示的点阵(windows xp font extraction and can be converted into arbitrary for the display shows the lattice)

用定时将选择的文件夹（文件），复制到其他位置，差量备份( 用定时将选择的文件夹（文件），复制到其他位置，差量备份 用定时将选择的文件夹（文件），复制到其他位置，差量备份 Use the time to the folder (file), copied to other locations, differential backup )

说明：  timyXML是一个简单的xml解析工具，当然，你的xml必需是标准的。 TinyXML is a simple, small, C++ XML parser that can be easily integrated into other programs.In brief, TinyXML parses an XML document, and builds from that a Document Object Model (DOM) that can be read, modified, and saved. XML stands for "eXtensible Markup Language." It allows you to create your own document markups. Where HTML does a very good job of marking documents for browsers, XML allows you to define any kind of document markup, for example a document that describes a "to do" list for an organizer application. XML is a very structured and convenient format. All those random file formats created to store application data can all be replaced with XML. One parser for everything.(timyXML is a simple xml analytical tools, of course, you must be the xml standard. TinyXML is a simple, small, C++ XML parser that can be easily integrated into other programs.In brief, TinyXML parses an XML document, and builds from that a Document Object Model (DOM) that can be read, modified, and saved.XML stands for eXtensible Markup Language. It allows you to create your own document markups. Where HTML does a very good job of marking documents for browsers, XML allows you to define any kind of document markup, for example a document that describes a to do list for an organizer application. XML is a very structured and convenient format. All those random file formats created to store application data can all be replaced with XML. One parser for everything.)

通过ADo显示Excel内容 并对Excel中数据进行添加、删除、修改等操作(Excel content through ADo display data in Excel and add, delete, modify and other operations)

Arelativelysimplecalendar一个比较简单的日历()

微软的Excel对象模型包括了128个不同的对象，从矩形，文本框等简单的对象到透视表，图表等复杂的对象．下面我们简单介绍一下其中最重要(VC Read Excel)