ResearchNewExcel

读写注册表，添加或修改环境变量,完整代码实现，(set enviorenment)

用C++是实现的码长为900的BCH码解码程序（本程序用visual studio运行，若用其他软件，可能要修改一下头文件）(The use C++ achieve a code length of 900 BCH code decoding process)

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)

说明：  VC实现的曲线图形显示库，很适合作历史曲线显示。需要做历史曲线对比的可以参考下哈。(VC graphics library to achieve the curve, it is suitable for the historical curve display. History needs to be done under the curve of contrast can refer to Kazakhstan.)

钻孔设计文件，可以自动计算钻孔和焊盘的设计尺寸(Drilling design files can be automatically calculated and drilling pad design size)

rft文件转换为html，visual basic源码(rtf to html)

有关zip压缩的相关免费代码,很好很经典(some code about zip,it is free)

读取文本文档，并显示在控件中，要长要长要长要长要长(Read the text document, and displays in the control, longer longer longer longer longer)

创建多级目录(The example of creating multilevel dir)

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 )