显示缓冲区与其相应文件之间差异的命令
是否有 emacs 命令可以显示缓冲区与其文件之间的差异？
例如，我对缓冲区进行了一些编辑，但忘记了它们是什么，现在我需要将缓冲区保存到其文件中，但想首先检查我实际更改的内容。
Is there an emacs command to show the difference between a buffer and its file?
For example, I've made some edits to a buffer, forgotten what they were, and now I need to save the buffer to its file, but want to check what I have actually changed first.
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带文件的差异缓冲区。我刚刚在谷歌上搜索“emacs 比较缓冲区文件已更改”。diff-buffer-with-file. I just googled for "emacs compare buffer file changed".另一种选择是按
Cx s，然后按d。这也显示了缓冲区与其文件之间的差异。如果感兴趣的缓冲区是唯一需要保存的缓冲区，则最有用。
Another option is to hit
C-x sfollowed byd. This also shows a diff between a buffer and its file.Most useful if the buffer of interest is the only one that needs saving.