The most basic condition for building a digital library is that a school must have a computer, or an electronic reading room, or a school has its own website and campus network. If it is a customer's local self-built model, a computer with relatively good performance (that is, a server) is needed to install the digital library software. If you want to upgrade the development version according to the installation, a good computer (server) needs at least 4G memory. The hard disk space of the server needs to be large, because we provide a storage carrier for the mobile hard disk, and eventually all the resources will be copied to the server.