How to use git revert to undo a merge

To undo a merge using git revert, you can follow these steps:

1. First, use the git log command to view the recent commit history and find the merged commit. Copy the commit ID of the merged commit.
2. Switch to the master branch
3. Revert the merged commit ID using the parent reference.
4. Git will open a new commit message file in the editor. You can keep the default commit message or modify it as needed. Save and close the editor.
5. Record the changes in Git
6. upload changes to the remote repository

After the above steps are completed, Git will create a new commit to undo the merge operation, and then push the commit to the remote repository. This successfully reverses the merge operation.