用MFC编写一个关于清除电脑里文件的软件，可以在设置目录里选择要删除的文件的类型，然在设置查找目录，会自动搜寻下边相同的的文件；(Using MFC to write a document on the removal of computer files, you can set the directory to select the type of file to be deleted, but in the set to find directories, will automaticall