git diff commit-SHA1 commit-SHA2 –name-status返回变更的文件列表，每个文件前带有变更状态：
- ’ ’ = unmodified
- M = modified
- A = added
- D = deleted
- R = renamed
- C = copied
- U = updated but unmergedgit diff commit-SHA1 commit-SHA2 –stat返回变更的文件列表，每个文件后面带有变更统计信息。
git diff commit-SHA1 commit-SHA2 –name-status返回变更的文件列表，每个文件前带有变更状态：