chan

func main(){

a:=1

b:=2

fmt.Println(a+b)

c:=make(chan struct{})

go func (){

for {

  _,ok:=<-c

  if ok{

    fmt.Println("ok")

  }else{

    fmt.Println("not ok")

  }

}

}()



tick := time.NewTicker(1 * time.Second)

select {

   case <-tick.C :

close(c)

  //case c<- struct{}{} :

    fmt.Println("select")

}

//c<-struct{}{}

}









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