Other languages have while, do-while, for, foreach… Go has one loop: for. Its three shapes:

Classic — a counter from–to:

for i := 1; i <= 3; i++ {
	fmt.Println("Round:", i)
}

"While"-style — just a condition:

attempts := 0
for attempts < 5 {
	attempts++
}

Forever + break — spins until something inside stops it:

for {
	fmt.Println("Asking again...")
	if done {
		break // or return — leaves the whole function
	}
}

The third shape looks the most dangerous, but it is exactly the backbone of a menu loop: the program must spin for as long as the user wants, and only the user knows how many rounds that is. We use it in the very next step.