package main

import (
    "fmt"
    "unicode/utf8"
)

func main() {
    s := "Hello, 龙"

    fmt.Println(len(s))
    fmt.Println(utf8.RuneCountInString(s))

    for i := 0; i < len(s); {
        r, size := utf8.DecodeRuneInString(s[i:])
        fmt.Printf("%d\t%c\n", i, r)
        i += size
    }

    //Traversing by string
    for i, r := range s {
        fmt.Printf("%d\t%q\t%d\n", i, r, r)
    }

    //Counting of amount runes
    n := 0
    for range s {
        n++
    }
    fmt.Printf("n=%d\n", n)
}