go_example.go

package main

import (
    "crypto/sha1"
    "fmt"
    "time"
)

func main() {
    id := make(chan string)

    go func() {
        h := sha1.New()
        c := []byte(time.Now().String())
        for {
            h.Write(c)
            id <- fmt.Sprintf("%x", h.Sum(nil))
        }
    }()

    fmt.Printf("This program will get 10 IDs from the id channel, print them and terminate\n\n")

    for i := 0; i < 10; i++ {
        fmt.Printf("%s\n", <-id)
    }
}