Introduction - If you have any usage issues, please Google them yourself
Achieve the specified directory and its subdirectories in the search for the file name extension, and to update the extension for the new program features reext procedure: 1. Procedures with the three command-line parameters dir, old and new, use for: reext dir old new one of Dir is a full path name, old and new are file extensions, such as: Reext c: \ ASM \ TEST txt doc 2. Procedures for the implementation of the function: in the path of Dir in the search for a file extension of all the txt file, if found, will be replaced by the extension doc, and the file name the same: 3. Higher requirements, you can search all the subdirectories of the specified directory, which required implementation recursive procedures.