How can I iterate over a string in go?

i have string like this:

package main

import "fmt"

func main() {
    some := "p1k4"

    for i, j := range some {
            fmt.Println()
    }
}

i want take each two string there should curent string then next one, next iteration should get the previous character. the output should like p1, 1k, k4, 4p.

i have tried it and still having trouble finding the answer, how should i write the code in go and get the output i want?

>Solution :

This is a simple for loop over your string with the first character appended at the back:

package main

import "fmt"

func main() {
    some := "p1k4"
    ns := some + string(some[0])
    for i := 0; i < len(ns)-1; i++ {
        fmt.Println(ns[i:i+2])
    }
}