How to remove line terminator in vi/vim editor

<code>vim hello.txt
# 输入hello
# :wq 保存退出
cat hello.txt</code>

The result is like this:

However:

<code>echo -n "hello" > hello.txt
cat hello.txt</code>

The result is like this:

Yes, the cat at this time has a termination mark, and the file will display with no line terminators

But when I edit it with vim and save it, the line terminator appears again.

You can see this newline character using nano, but I don’t know how to use nano and don’t use nano very often (don’t laugh)

--The following content has nothing to do with the topic, it just describes the background of the accident--

This problem caused me to have an extra newline character when using ssi in nginx, so that the style and js address were spliced ​​into newlines, and most browsers could not load normally.

<code><link type="text/css" href="<!--#include virtual='/inc/cdn.inc'-->/public/index.css?v=<!--#include virtual='/inc/version.inc" /></code>

file: cdn.inc, due to manual vim editing of the file, most users of the website were not aware of the style failure (extra line breaks)

<code>mydomain.com</code>

file: version.inc, the script will update this file when it goes online to clear the browser cache

<code>1477452280307</code>

Reply content:

<code>vim hello.txt
# 输入hello
# :wq 保存退出
cat hello.txt</code>

The result is like this:

However:

<code>echo -n "hello" > hello.txt
cat hello.txt</code>

The result is like this:

Yes, the cat at this time has a termination mark, and the file will display with no line terminators

But when I edit it with vim and save it, the line terminator appears again.

You can see this newline character using nano, but I don’t know how to use nano and don’t use nano very often (don’t laugh)

--The following content has nothing to do with the topic, it just describes the background of the accident--

This problem caused me to have an extra newline character when using ssi in nginx, so that the style and js address were spliced ​​into newlines, and most browsers could not load normally.

<code><link type="text/css" href="<!--#include virtual='/inc/cdn.inc'-->/public/index.css?v=<!--#include virtual='/inc/version.inc" /></code>

file: cdn.inc, due to manual vim editing of the file, most users of the website were not aware of the style failure (extra line breaks)

<code>mydomain.com</code>

file: version.inc, the script will update this file when it goes online to clear the browser cache

<code>1477452280307</code>

<code>:set noendofline binary
:w</code>

Check if set ff is set to dos

For Linux, the configuration is usually set ff=unix, right?

----- Editor----
I experimented and it seems to have nothing to do with ff-. -