用到CFtpConnection类，少有的用winsock开发的在VB平台的FTP源码，有文件列表，重命名删除文件等功能。网上也有，但我这个可以修正好可以正常下载，网上找的不能正常下载-CFtpConnection use category, a rare development using winsock in VB platform FTP source, there is the list of files, rename, delete files and other functions