The difference between Encoding.Unicode and Encoding.UTF8 in C#

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I saw a blog post on the homepage of Yuanzi today - a brief chat about Unicode and UTF-8, from which I learned that UTF-8 is a part of Unicode An implementation method:

Unicode only stipulates a unified binary number for every character in the world, and does not specify how the program should store and parse it.

It can be said that UTF-8 is one of the implementation methods of Unicode...

When recording this harvest in flash memory, @飞鸟_Asuka mentioned a good one in the reply Question: "So why are unicode and utf8 two separate options when choosing the encoding method?"

In C#, System.Text.Encoding.Unicode and System.Text.Encoding.UTF8 are respectively There are 2 encoding methods. If UTF-8 is an implementation method of Unicode, then why is Encoding.Unicode used as an encoding method in parallel with UTF8 in C#?

Later I found the answer on stackoverflow:

Windows handles so-called "Unicode" strings as UTF-16 strings, while most UNIXes default to UTF-8 these days.

It turns out that the default Unicode implementation in Windows is UTF-16, so Encoding.Unicode in C# is UTF-16.

The comment of System.Text.Encoding.Unicode also proves this:

##

//
// Summary:
//     Gets an encoding for the UTF-16 format using the little endian byte order.
//
// Returns:
//     An encoding for the UTF-16 format using the little endian byte order.public static Encoding Unicode { get; }