io2int test

io2int.go

package main

import (
	"bufio"
	"fmt"
	"strconv"
	"strings"
)

func main() {
	str := []byte("L=312\r\n")
	reader := bufio.NewReader(strings.NewReader(string(str)))
	line, _ := reader.ReadString('\n')
	if line[:1] == "L" {
		l, err := strconv.Atoi(strings.TrimSpace(line[2:]))
		if err != nil {
			fmt.Println(err)
		} else {
			fmt.Println(l)
		}

	}

}