alias是别名，设置后可以 git co 分支名

    1. [color]
    2.         branch = auto
    3.         diff = auto
    4.         status = auto
    5. [gui]
    6.         editor = gvim
    7.         historybrowser = gitk
    8. [merge]
    9.         tool = kdiff3
    10.         conflictstyle = diff3
    11. [push]
    12.         default = simple
    13. [alias]
    14.         l = log --graph --all --oneline
    15.         cm = commit
    16.         cma = commit --amend
    17.         cmaa = commit -a --amend
    18.         rbs = rebase --skip
    19.         rbc = rebase --continue
    20.         rba = rebase --abort
    21.         co = checkout
    22.         rb = rebase
    23.         p = push
    24.         pf = push -f
    25.         pa = push --all
    26.         paf = push --all -f
    27.         rbi = rebase -i
    28.         debver = !git describe --tags --long --always | sed -r \"s/([0-9]+?)-([0-9]+?)-g([0-9a-f]+?)/\\1+\\2.\\3/g\"
    29.         pt = push --tags
    30.         ptf = push --tags -f
    31.         prbu = pull --rebase upstream
    32. [diff]
    33.         rename = true
    34.         tool = kdiff3
    35. [cola]
    36.         tabwidth = 4
    37. [status]
    38.         submoduleSummary = true
    39. [http]
    40. [https]
    41. [core]
    42.         excludesfile = ~/.gitignore
    43.                 pager = diff-so-fancy | less --tabs=4 -RFX
    44. [http "https://gopkg.in"]
    45.         followRedirects = true
    46. [fetch]
    47.         prune = true
    48. [branch]
    49.                 autosetuprebase = always