具有始终相等编号的 GUID
GUID with a always equal number
为什么在这台电脑生成的每个GUID中间，我们都能看到一个4？
这是GUID算法版本（4在你的情况下）：
https://en.wikipedia.org/wiki/Universally_unique_identifier
In its canonical textual representation, the sixteen octets of a UUID
are represented as 32 hexadecimal (base 16) digits, displayed in five
groups separated by hyphens, in the form 8-4-4-4-12 for a total of 36
characters (32 alphanumeric characters and four hyphens). For example:
123e4567-e89b-12d3-a456-426655440000
xxxxxxxx-xxxx-Mxxx-Nxxx-xxxxxxxxxxxx
The four bits of digit M indicate the UUID version, and the one to
three most significant bits of digit N indicate the UUID variant. In
the example, M is 1 and N is a (10xx), meaning that the UUID is a
variant 1, version 1 UUID; that is, a time-based DCE/RFC 4122 UUID.
这是由于正在使用的 GUID/UUID's 版本所致；
可以找到一些很好的信息here，但基本上这些是使用以下格式的第 4 版：
xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx
为什么在这台电脑生成的每个GUID中间，我们都能看到一个4？
这是GUID算法版本（4在你的情况下）：
https://en.wikipedia.org/wiki/Universally_unique_identifier
In its canonical textual representation, the sixteen octets of a UUID are represented as 32 hexadecimal (base 16) digits, displayed in five groups separated by hyphens, in the form 8-4-4-4-12 for a total of 36 characters (32 alphanumeric characters and four hyphens). For example:
123e4567-e89b-12d3-a456-426655440000 xxxxxxxx-xxxx-Mxxx-Nxxx-xxxxxxxxxxxxThe four bits of digit M indicate the UUID version, and the one to three most significant bits of digit N indicate the UUID variant. In the example, M is 1 and N is a (10xx), meaning that the UUID is a variant 1, version 1 UUID; that is, a time-based DCE/RFC 4122 UUID.
这是由于正在使用的 GUID/UUID's 版本所致；
可以找到一些很好的信息here，但基本上这些是使用以下格式的第 4 版：
xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx