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Introduction to Go (Golang)

1. Overview of Go Language​

An open-source programming language released by Google in 2009. It is optimized for system programming and network programming.

  • Features: Powerful concurrency control based on Goroutines, fast compilation speed, simple syntax.
  • Advantages: Can be deployed as a single binary, has excellent execution performance, and is easy to maintain.
  • Application Areas: Cloud infrastructure (Docker, Kubernetes), MSA (Microservices), and backend API services.

2. Installation​

  • Download installation files for each OS from go.dev.
  • Verify the installation using the go version command in the terminal.

3. Hello, Go!​

package main

import "fmt"

func main() {
    // Standard output
    fmt.Println("Hello, Gopher LLC!")
}

4. A Taste of Goroutines​

Implement Go's most powerful feature, concurrency, with extreme ease.

func main() {
    // Just one 'go' keyword creates a new routine.
    go func() {
        fmt.Println("I run in the background.")
    }()
    
    fmt.Println("This is the main routine.")
}
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