备份svn
svnadmin dump D:\svn\Repositories\Product > F:\svn\svn.dump
把备份文件添加到新的svn
svnadmin load F:\svn\Repositories\Product < F:\svn \svn.dump
svnadmin dump D:\svn\Repositories\Product > F:\svn\svn.dump
svnadmin load F:\svn\Repositories\Product < F:\svn \svn.dump