("Computer Network" is a professional basic course for computer network technology and professional groups. The theory is based on the principle of sufficient use, and it focuses on the network construction technology in the technology of "network construction, network utilization, and pipe network". The course is explained around the three tasks, 10 learning Situational development enables students to master basic theoretical and practical knowledge. It enables students to use the Internet, design and build simple computer networks and provide basic network services, as well as simple network maintenance, so as to learn follow-up courses in the future and improve their majors lay the foundation for quality)