聊天

package main

import (
    "net"
    "fmt"
)


func main() {
    listen,err := net.Listen("tcp",":8080")
    if err != nil {
        fmt.Println("监听端口失败：",err)
        return
    }
    fmt.Println("已初始化，等待客户端连接...")

    for {
        conn,err := listen.Accept()
        if err != nil {
            fmt.Println("接收客户端连接异常：",err)
            continue
        }
        fmt.Println("接收客户端连接正常！")
        fmt.Println("已接入：",conn.RemoteAddr().String())
        defer conn.Close()

        go func() {
            data := make([]byte,1024)
            for {
                i,err := conn.Read(data)
                if err != nil {
                    fmt.Println("读取客户端数据错误：",err)
                }
                fmt.Println("客户端发来数据：",data[:i])
                fmt.Println("正在处理为可读模式...")
                fmt.Println("数据为：",string(data[:i]))

                resp := make([]byte,128)
                fmt.Scan(&resp)
                conn.Write(resp)

            }
        }()
    }
}

package main

import (
    "net"
    "fmt"
)

func main() {
    conn,err := net.Dial("tcp",":8080")
    if err != nil {
        fmt.Println("连接服务器失败：",err)
    }
    fmt.Println("yi连接服务器")
    defer conn.Close()

    msg := make([]byte,1024)
    for {
        fmt.Println("请输入要发送的信息：")
        _,err := fmt.Scan(&msg)
        if err != nil {
            fmt.Println("输入异常：",err)
        }
        _,err = conn.Write(msg)
        if err != nil {
            fmt.Println("数据发送失败：",err)
            fmt.Println(`请选择下一步操作：
1.重新发送
2.退出
3.break
                    `)
            var ch int
            _,err := fmt.Scan(&ch)
            if err != nil {
                fmt.Println("输入异常：",err)
            }
            switch ch {
            case 1:

            case 2:
                return
            case 3:
                break
            default:
                fmt.Println("输入错误")
            }
        }


        buf := make([]byte,128)
        c,err := conn.Read(buf)
        if err != nil {
            fmt.Println("读取服务器数据异常：",err)
            return
        }


        fmt.Println("服务器返回数据为：",string(buf[:c]))
    }
}