func?main()?{
???ch?:=?make(chan?string)

???for?i?:=?0;?i?<?300;?i++?{
??????go?PrintHello(i,?ch)
???}

???for?{
??????msg?:=?<-ch
??????fmt.Println(msg)
???}

}

func?PrintHello(i?int,?ch?chan?string)?{
???ch?<-?fmt.Sprintf("print?%d\n",?i)
}

運行后：

fatal error: all goroutines are asleep - deadlock!

goroutine 1 [chan receive]:

main.main()

～/simpleGoRoutine.go:15 +0xa1

print 0

print 2

...