pythonTCP

TCP客户端

import socket

def main():
    #1、创建tcp套接字
    tcp_socket = socket.socket(socket.AF_INET,socket.SOCK_STREAM)
    #2、连接服务器
    server_ip = "192.168.1.1"
    server_port = 21990
    tcp_socket.connect((server_ip,server_port))
    #3、收发数据
    send_data = ""
    tcp_socket.send(send_data.encode("utf-8"))
    #4、关闭套接字
    tcp_socket.close()
if __name__ == '__main__':
    main()

TCP服务器

import socket
def main():
    #1、创建socket
    tcp_server_socket = socket.socket(socket.AF_INET,socket.SOCK_STREAM)
    #2、绑定
    tcp_server_socket.bind(("10.1.0.245",53780))
    #3、设置监听状态
    tcp_server_socket.listen(128)
    while True:
        print("wait client...")
        # 4、等待连接 有一个返回值 是一个元祖 两个参数值 拆包 一个新的套接字和客户地址
        new_client_socket, client_addr = tcp_server_socket.accept()
        print("get client...")
        while True:
            rev_data = new_client_socket.recv(1024)
            print("client say:%s" % rev_data.decode('utf-8'))
            #果然rev_data为空表示断开了
            if rev_data:
                new_client_socket.send("go".encode('utf-8'))
            else:
                break



    new_client_socket.send("accept".encode('utf-8'))

    new_client_socket.close()
    tcp_server_socket.close()
if __name__ == '__main__':
    main()