ʕ◔ϖ◔ʔ From http://go-tour-jp.appspot.com/#41

41_Maps

package main

import (
    "code.google.com/p/go-tour/wc"
    "strings"
)

func WordCount(s string) map[string]int {
    seperate := strings.Split(s, " ")
    result := make(map[string]int)
    for i:= range seperate {
    	result[ seperate[i] ] += 1
    }
    return result
}

func main() {
    wc.Test(WordCount)
}