偶然间发现了git 2.9可以支持更好看的Diff功能了，如下：
只好先update brew
brew update 再更新git
brew upgrade git然后就看着它更新了：
==> Upgrading 1 outdated package, with result:
git 2.9.0
==> Upgrading git
==> Downloading https://homebrew.bintray.com/bottles/git-2.9.0.el_capitan.bottle.tar.gz接着，需要link这个工具：
ln -s /usr/local/Cellar/git/2.9.0/share/git-core/contrib/diff-highlight/diff-highlight /usr/local/bin/然后配置:
git config pager.diff 'diff-highlight | less'也可以配置到其他几个不同的命令:
$ git config pager.log 'diff-highlight | less'
$ git config pager.show 'diff-highlight | less'
$ git config pager.diff 'diff-highlight | less'顺便的：
git config interactive.diffFilter diff-highlight或许您还需要下面的文章: