Being in the superior environment of a built local area network, there is no need to deeply understand how the local area network is built, no need to be familiar with the hardware structure, wiring method, communication protocol, and operating system of the local area network. In the company, all these things are handled by technical personnel. What we need to do is make good use of the local area network. The original intention of setting up a local area network is to connect computer resources like using the addition rule, and then share resources across the entire network like "communism." Below, let's take a look at how to share the "communist" resources of the local area network, turning the use of computer network resources into multiplication, or even exponentiation.