Reference documents:
http://svndoc.iusesvn.com/
SVN Related Websites
What is svn?
Subversion is a "centralized" information sharing system. Subversion repository is the core part of the central data warehouse. Typical repository file and directory structure in the form of a file system tree to save the information. Any number of clients connect to the Subversion repository, read, modify these files. The client by writing data to share information to other people, to get information that was shared by reading the data.
svn occurs mainly in order to take over the cvs. And fixes previous problems of many cvs:
You can refer to:
https://blog.csdn.net/zrh_CSDN/article/details/95795639
https://www.cnblogs.com/legou/articles/1871503.html