Branch directory: The SVN Branch directory is located under the various engineering version branches related to the project. The following version branches of the directory may be modified to merge. is not a stable version.
Document directory: The SVN file directory is stored in: project-related documentation or some necessary development tools or software can also put some common components.
Tag directory: This svn's tag directory is the following: Each release version associated with the project. In general, the engineering version in this directory is stable and can be kept stationary.
Trunk directory: The SVN trunk directory is stored in: project-related client source and server-side project source code. This directory is mainly used for normal current work. The code directory to be submitted daily.
SVN below directory description