武翔

final

1 git is a distributed version control system. 1 git is a distributed version control system.
2 git is free software distributed under the GPL. 2 git is free software distributed under the GPL.
3 git has a mutable index called stage. 3 git has a mutable index called stage.
4 -git tracks changes. 4 +git tracks changes of files.
5 5
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