读取文件最后一行

func ReadFile(file_name string) (info string) {
file, err := os.Open(file_name)
if err != nil {
log.Fatal(err)
}
defer file.Close()
var lineText string
scanner := bufio.NewScanner(file)
for scanner.Scan() {
lineText = scanner.Text()
//fmt.Print(lineText)
}
return string(lineText)
}