强力删除文件的源代码，C实现，非常适合于新手，里面的思路很清晰，有兴趣的可以-Powerful deleting files of source code, C realize, which is very suitable for beginners, inside thinking clearly, have the interest can see

能够成功读写excel的C++代码，读写速度快，代码简单，实现思路很清晰-Can read and write excel C++ code, read and write speed, the code is simple, to achieve clear thinking