return first done or wait all

gistfile1.go

package main

import "fmt"
import (
	"time"
)

//import "math/rand"

func main() {
	count := 3
	result := make(chan int)
	done := make(chan bool)
	go func() { // We launch the goroutine from inside the function.

		time.Sleep(time.Duration(3) * time.Second)
		result <- 3
	}()
	go func() { // We launch the goroutine from inside the function.

		time.Sleep(time.Duration(2) * time.Second)
		result <- 2
		done <- true
	}()
	go func() { // We launch the goroutine from inside the function.

		time.Sleep(time.Duration(1) * time.Second)
		result <- 1
	}()
	//timeout := time.After(3 * time.Second)

	for {
		select {
		case s := <-result:
			count = count - 1
			fmt.Println(s)
			if count == 0 {
				fmt.Println("finish" + string(s))

				return
			}
		case <-done: //和上次消息的差别
			fmt.Println("done")
			return
		}
	}
}