比对分支
git diff HEAD HEAD^
git diff HEAD b342771c752f4
git diff 702396b0d1 b342771c75
删除分支
git branch -d fix-01
创建分支
git checkout -b fix_readme fix-01
修改最新commit的message
git commit --amend
修改老旧commit的message(702396b0d1为被修改commit的父亲)
git rebase -i 702396b0d1
连续的commit整理成一个
1576984015513.jpg
899.jpg
间隔的commit整理成一个
8474.jpg
查看HEAD和暂存区的差异
dongsihengdeMBP:git_objects dsh$ git diff --cached
diff --git a/readme b/readme
index 2d832d9..979b204 100644
--- a/readme
+++ b/readme
@@ -1 +1 @@
-hello,world
+dsh,ello,world
查看工作区和暂存区的差异
git diff
git diff -- readme.md
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