solution of exercise http://tour.golang.org/#38

output.md

sliceexercise.go

package main

import "code.google.com/p/go-tour/pic"

func Pic(dx, dy int) [][]uint8 {
    ret := make([][]uint8, dy)
    for i := range ret {
        ret[i] = make([]uint8, dx)
        for j := range ret[i] {
       		ret[i][j] = uint8(i^j)
        }
    }
    return ret
}

func main() {
    pic.Show(Pic)
}