vim 和 vi 区别

只知道vim比vi强大一些，具体区别刚在网上查了一下，主要有：

Vim adds onto those features. Here are a few of the extended vim features that I have come to rely on:

Vim has been ported to a much wider range of OS's than vi.

Vim includes support (syntax highlighting, code folding, etc) for several popular programming languages (C/C++, Python, Perl, shell, etc).

Vim integrates with cscope.

Vim can be used to edit files using network protocols like SSH and HTTP.

Vim includes multilevel undo/redo.

Vim allows the screen to be split for editing multiple files.

Vim can edit files inside a compressed archive (gzip, zip, tar, etc).

Vim includes a built in diff for comparing files (vimdiff).

Vim includes support for plugins, and finer control over config and startup files.

Vim can be scripted with vimscript, or with an external scripting language (e.g. python, perl, shell).