svn update 冲突解决

运行svn update后，若版本冲突，将有如下选项可供选择：

  (e)  edit             - change merged file in an editor　　　　　　
  (df) diff-full        - show all changes made to merged file
  (r)  resolved         - accept merged version of file

  (dc) display-conflict - show all conflicts (ignoring merged version)　　产生综合版本，就是带两条杠的那种，需要大量的后期处理，不推荐
  (mc) mine-conflict    - accept my version for all conflicts (same)　　使用自己的版本
  (tc) theirs-conflict  - accept their version for all conflicts (same)　　使用别人的版本

  (mf) mine-full        - accept my version of entire file (even non-conflicts)
  (tf) theirs-full      - accept their version of entire file (same)

  (p)  postpone         - mark the conflict to be resolved later
  (l)  launch           - launch external tool to resolve conflict
  (s)  show all         - show this list