说明：  使用Visual C++编程久了，编写的工程多了，如果我们没有及时删除工作目录下的Debug或者Release目录，就会有大量的垃圾的中间文件存留在我们的系统中。占用我们大量的硬盘空间。但是，如果我们每次编译完一个工程就手动去删除这些多余的文件，是比较麻烦的一件事情。为了解决这个不便，我花了一点时间写了递归删除指定目录和文件的小工具。
(use Visual C Programming long, the preparation of the works and more, and if we did not work in time to delete the directory Debug or Release directory, there will be a lot of garbage in the middle document retention in our system. We occupy a lot of hard drive space. However, if every time we build a project on End to manually delete these unnecessary documents, the trouble is a thing. To solve this inconvenience, and I spent some time writing a recursive delete specified files and directories of small tools.)