package main

import (

    "bufio"

    "fmt"

    "io"

    "os"

    "strings"

    "time"

)

func main() {

    readChannel := make(chan string)

    go readFile(readChannel)

    for r := range readChannel {

        fmt.Println(r)

    }

}

func readFile(readChannel chan string) {

    f, err := os.Open("1.txt")

    if err != nil {

        panic(fmt.Sprintf("open file error:%s", err.Error()))

    }

    //移动到文件末尾

    f.Seek(, os.SEEK_END)

    reader := bufio.NewReader(f)

    for {

        line, err := reader.ReadBytes('\n')

        fmt.Println(err)

        if err == io.EOF {

            time.Sleep(time.Second)

            continue

        } else if err != nil {

            panic("ReadBytes error:" + err.Error())

        }

        lineStr := strings.TrimSpace(string(line))

        readChannel <- lineStr

    }

}