static linking and dynamic linking

Links can be either dynamic or static:

Dynamic linking:
In the linking stage, the .o files generated by the assembly are linked and packaged together with the required libraries into an executable file, which becomes a part of the executable program.

Advantages:
Fast running speed, executable program has all the contents of the program running, less dependence on the running environment, and good compatibility.
Disadvantages:
The program is large and wastes space. Each executable program has a copy of the static library. If the static library is updated, it needs to be recompiledlink

Dynamic linking:
The dynamic library is loaded when the program is running. If different executable programs call the same library, there is only one instance of the dynamic library in the memory

Advantages:
The program is small in size, saves space, and is easy to update
Disadvantages:
Linking when the program is running, there is a certain performance loss compared to static linking