package main

import (
	"fmt"
	"time"
)

func main() {
	ticker := time.NewTicker(1 * time.Second)

	i := 0
	for {
		<-ticker.C

		i++
		fmt.Println("i = ", i)

                //输出5次就停止
		if i == 5 {
			ticker.Stop()
			break
		}
	}
}

i =  1
i =  2
i =  3
i =  4
i =  5