GUID Generator

GUID Generator Introduction

1. guid is a 128-bit identifier defined by microsoft, which is used to uniquely identify objects in a distributed computing environment.

2. the purpose of guid is to ensure uniqueness in time and space.

3. guid is used to create the primary key of the database, identify devices, files, application instances on the network, etc.

4. guid is usually represented in the form of 32-bit hexadecimal numbers. each guid is composed of 5 sets of 8-bit hexadecimal numbers, and each group is separated by a hyphen.

5. guid has built-in support in many programming languages ​​and operating systems and is widely used.