nums := []int{2, 3, 4} sum := 0 for _, num := range nums { sum += num } fmt.Println("sum:", sum)
for i, num := range nums { if num == 3 { fmt.Println("index:", i) } }
kvs := map[string]string{"a": "apple", "b": "banana"} for k, v := range kvs { fmt.Printf("%s -> %s\n", k, v) }