我怎么能让svnlook tree视图只是2级？
你的意思是你想要一个像-L tree命令的选项吗？ 看来svnlook tree没有这样的选项：
# svnlook help tree tree: usage: svnlook tree REPOS_PATH [PATH_IN_REPOS] Print the tree, starting at PATH_IN_REPOS (if supplied, at the root of the tree otherwise), optionally showing node revision ids. Valid options: -r [--revision] ARG : specify revision number ARG -t [--transaction] ARG : specify transaction name ARG -N [--non-recursive] : operate on single directory only --show-ids : show node revision ids for each path --full-paths : show full paths instead of indenting them