socket 套接字通信

<span>"""</span><span>
先启动套接字服务端
    注意：
        客户端一次发送，服务端先一次接收，再发送
</span><span>"""</span>
<span>import</span><span> socket

</span><span>#</span><span> 就好像：买手机</span>
server =<span> socket.socket()

</span><span>#</span><span> 绑定手机卡</span><span>
#</span><span> ip地址相当于手机号码</span>
server.bind((<span>"</span><span>127.0.0.1</span><span>"</span>, 9527<span>))

</span><span>#</span><span> 半连接池</span>
server.listen(5)    <span>#</span><span> 最多5个人坐椅子   实际上==6</span>

<span>#</span><span> 循环实现可接收多了用户访问</span>
<span>while</span><span> True:
    </span><span>#</span><span> 等待电话接入  --->  客户端</span>
    <span>#</span><span> conn：指的是服务端通往客户端的管道</span>
    conn, addr =<span> server.accept()

    </span><span>#</span><span> 循环实现循环通信</span>
    <span>while</span><span> True:
        </span><span>try</span>:    <span>#</span><span> 监听代码块是否有异常</span>
            <span>#</span><span> 接听对方讲话的内容</span>
            <span>#</span><span> data 客户端发送过来的消息</span>
            data = conn.recv(1024)  <span>#</span><span> 可接收一次1024 bytes的数据</span>
            <span>if</span> data.decode(<span>"</span><span>utf-8</span><span>"</span>) == <span>"</span><span>q</span><span>"</span><span>:
                </span><span>break</span>
            <span>if</span> len(data) ==<span> 0:
                </span><span>break</span>
            <span>print</span><span>(data)

            </span><span>#</span><span> 服务端向客户端发送消息</span>
            res = input(<span>"</span><span>请回复客户端消息>>> </span><span>"</span><span>)
            conn.send(res.encode(</span><span>"</span><span>utf-8</span><span>"</span><span>))
        </span><span>#</span><span> 捕获异常信息</span>
        <span>except</span><span> Exception as e:
            </span><span>#</span><span> 打印异常</span>
            <span>print</span><span>(e)
            </span><span>break</span>


    <span>#</span><span> 关闭通信，挂电话</span>
    conn.close()

www#gaodaima.com来源gaodai#ma#com搞@@代~&码*网搞代码

<span>"""</span><span>
启动服务端后再启动客户端
</span><span>"""</span>
<span>import</span><span> socket

</span><span>#</span><span> 买手机</span>
client =<span> socket.socket()

</span><span>#</span><span> 拨号</span><span>
#</span><span> 客户端的ip，port必须与服务器一致</span>
client.connect((<span>"</span><span>127.0.0.1</span><span>"</span>, 9527<span>))

</span><span>#</span><span> 循环实现可接收多次服务端返回信息以及访问服务端信息</span>
<span>while</span><span> True:
    send_data </span>= input(<span>"</span><span>请发送服务端消息>>> </span><span>"</span><span>)
    </span><span>#</span><span> 讲话给对方听</span>
    <span>#</span><span> 必须发送bytes</span>
    <span>#</span><span> client.send(b"hello")</span>
    <span>#</span><span> 或者编码</span>
    client.send(send_data.encode(<span>"</span><span>utf-8</span><span>"</span><span>))
    </span><span>#</span><span> 客户端收到服务端返回信息</span>
    data = client.recv(1024<span>)
    </span><span>if</span> data.decode(<span>"</span><span>utf-8</span><span>"</span>) == <span>"</span><span>q</span><span>"</span><span>:
        </span><span>break</span>
    <span>if</span> len(data) ==<span> 0:
        </span><span>break</span>
    <span>print</span><span>(data)

</span><span>#</span><span> 关闭通信，挂电话</span>
client.close()