VS2012运行环境，文件遍历系统，可选择盘符，后缀来遍历文件，可选删除或复制操作。对于vs或vc工程则是对整个文件夹操作。-VS2012 runtime environment, file traversal system, optional letter suffix to traverse the file, the optional delete or copy operation. Vs vc project is the entire folder.