package main import ( "fmt" //mathRand "math/rand" cryptoRand "crypto/rand" "math/big" "time" ) func main() { fmt.Println("Hello, playground", time.Now()) nBig, err := cryptoRand.Int(cryptoRand.Reader, big.NewInt(27)) if err != nil { panic(err) } n := nBig.Int64() //b := []byte{0} //r := cryptoRand.Reader.Read(b) fmt.Println("r", n) //fmt.Println("Random", mathRand.Seed(r).Intn(9)) }