the-way-to-go_ZH_CN/eBook/exercises/chapter_14/goroutine_panic.go

package main

import (
	"fmt"
)

func tel(ch chan int) {
	for i := 0; i < 15; i++ {
		ch <- i
	}
}

func main() {
	var ok = true
	ch := make(chan int)

	go tel(ch)
	for ok {
		i := <-ch
		fmt.Printf("ok is %t and the counter is at %d\n", ok, i)
	}
}