SVN客戶端URL地址修改命令：. switch --relocate FROM TO [PATH...]
Rewrite working copy URL metadata to reflect a syntactic change only.
This is used when repository's root URL changes (such as a scheme
or hostname change) but your working copy still reflects the same
directory within the same repository.
svn switch --relocate http://127.0.0.1:90/abc/flash/ http://X.X.X.X:90/data/flash/