Go has a built-in logging library known as log with a commonly use method Print and its variants. You can import the library then do some basic printing:
package main
import "log"
func main() {
    log.Println("Hello, world!")
    // Prints 'Hello, world!' on a single line
    log.Print("Hello, again! \n")
    // Prints 'Hello, again!' but doesn't break at the end without \n
    hello := "Hello, Stackers!"
    log.Printf("The type of hello is: %T \n", hello)
    // Allows you to use standard string formatting. Prints the type 'string' for %T
    // 'The type of hello is: string
}