这个程序递归地搜索了C++：用某些扩展驱动文件…

代码说明：

This program Recursively Searches the C: drive for files with certain extensions, like .txt and .html and it opens each file and searches for the @ sign. If it finds an @ sign, it will extract it and write the address to a file in the root directory called "email_addresses.txt"-This program Recursively Searches the C : drive for files with certain extensions. like. txt and. html and it opens each file and sea rches for the @ sign. If it finds an @ sign, it will extract it and write the address to a file in the root directory called "email_addresses . txt "