git命令使用-撤销某个文件的修改

场景一：对文件的修改尚未添加到暂存

命令：

git checkout -- 文件名

示例：

➜  test git:(master) ✗ ls
1.sql q.txt
➜  test git:(master) ✗ git status
On branch master
Changes to be committed:
  (use "git restore --staged ..." to unstage)
	modified:   1.sql

Changes not staged for commit:
  (use "git add ..." to update what will be committed)
  (use "git restore ..." to discard changes in working directory)
	modified:   q.txt

➜  test git:(master) ✗ git checkout -- q.txt
➜  test git:(master) ✗ git status
On branch master
Changes to be committed:
  (use "git restore --staged ..." to unstage)
	modified:   1.sql

场景二： 已经添加到暂存区

命令：

git reset HEAD 文件名
git checkout -- 文件名

示例：

➜  test git:(master) ✗ ls
1.sql q.txt
➜  test git:(master) ✗ git status
On branch master
Changes to be committed:
  (use "git restore --staged ..." to unstage)
	modified:   1.sql

➜  test git:(master) ✗ git reset HEAD 1.sql
Unstaged changes after reset:
M	1.sql
➜  test git:(master) ✗ git status
On branch master
Changes not staged for commit:
  (use "git add ..." to update what will be committed)
  (use "git restore ..." to discard changes in working directory)
	modified:   1.sql

no changes added to commit (use "git add" and/or "git commit -a")
➜  test git:(master) ✗ git checkout -- 1.sql
➜  test git:(master) git status
On branch master
nothing to commit, working tree clean