先显示提交的记录:
git log commit e499aac9257354c54ac2e1ff6a393ac7c8d2f342 Author: xx <xxx@xx.com> ......
回到指定版本:
git reset --hard e499aac9257354c54ac2e1ff6a393ac7c8d2f342
强制提交分支master:
master
git push -f origin master