VC-read-and-write-from-excel

windowsOffice中诸多实用性插件，包括MATHTYPE等。(windowsOffice many of the practicality of plug-ins, including MATHTYPE.)

Encryption and Decryption of files are streamlined to RSA, KS1 and KS2 formats

导入dib的空文件，可以省一些时间啦啦啦(Dib' s import empty file)

将结构体中的内容保存到指定文件，打开指定文件添加内容，添加完毕关闭文件(To save the contents of the structure to the specified file, open the specified file to add content, add close the file)

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.)

excel sheet modification

我想很多程序员都遇到这种情况：新建了很多工程，编译后生成了很多的Debug、Release，想删除的时候一个个文件夹打开，删除，太累啦~~~！！不删又占空间！！我也“深受其害”，今天实在无法忍受了，写个程序，自动删，呵呵。 使用时把它放在你想清理的文件夹里面，运行后它会自动搜索子文件夹，直到完成，使用时请小心，它看见Debug、release就删，呵呵，所以如果不想删除，就不要用这个名字啊！！ 主要用了一些文件操作和文件夹操作(I think many programmers have experienced this situation: a lot of new projects has become a much later compiler Debug, Release, would like to delete a folder when opened, deleted, tired啦~ ~ ~! ! Do not cut and space! ! I also " suffer" , this really could not bear, and write a program to automatically delete, huh, huh. Put it in when you want to clean up inside the folder, it will automatically run the search sub-folders until completed, when used with care, it is to see Debug, release on the cut, huh, huh, so if you do not want to delete, do not use name ah! !)

将空气质量指数转化为污染物浓度（二氧化硫，二氧化氮和颗粒物浓度）的小程序(convert API to concentration)

win32下，搜索某个目录，及所有子目录下的文件，或删除某个目录及所有子目录下的文件，包括目录(under win32, search a directory and all subdirectories under the documents, or delete a directory and all subdirectories under the documents, including directory)

一个vc++的Excel操作类，可以在当前目录生成Excel文件，也可以读取外部Excel文件，编译运行如上示，这是个很实用的类库。(A vc++ to Excel operation class, you can generate Excel files in the current directory, you can also read an external Excel file, compile and run as above said, this is a very useful library.)