This course is recorded based on the "Go Language Basics Video" and is the second half of the Go language basics. Including package management, IO operations, the biggest highlights of Go language: high concurrency, goroutine, channel, reflection, etc. This video is mainly to help beginners of the Go language get started quickly from scratch. After completing this course, you can learn how to manage Go projects through packages, concurrency models, and concurrency implementations, how channels transmit data, reflection, etc.