在Golang中手动触发和停止time.Ticker通道

onetwothreeTicker ticked

package main

import (
    "bufio"
    "fmt"
    "os"
    "strings"
    "time"
)

func main() {
    reader := bufio.NewReader(os.Stdin)

    for {
        fmt.Print("> ")

        text, _ := reader.ReadString('\n')
        text = strings.Replace(text, "\n", "", -1)

        switch text {
        case "one":
            go timeTick(true, 1)
        case "two":
            go timeTick(true, 2)
        case "three":
            go timeTick(true, 3)
        default:
            go timeTick(false, 0)
        }
    }
}

func timeTick(flag bool, tick int) {
    var tickChan *time.Ticker

    if flag {
        tickChan = time.NewTicker(time.Second * time.Duration(tick))
    }

    doneChan := make(chan bool)

    if !flag {
        doneChan <- true
    }

    for {
        select {
        case <-tickChan.C:
            fmt.Println("Ticker ticked")
        case <-doneChan:
            fmt.Println("Done")
            return
        }
    }
}

onetwothreetruedoneChan

oneTicker tickedtwothreedoneChan