python3 网络编程

Socket

• socket()函数
  • 创建套接字,语法：socket.socket([family[,type]]])
  • 参数：
    • family：套接字家族可以使用AF_UNIX或者AF_INET
    • type: 套接字类型可以根据是面向连接还是非链接分为SOCK_STREAM或SOCK_DGRAM
    • protocol: 一般不填默认0.

Socket对象（内建）方法

• 服务器端
  • bind()
  • listen()
  • accept()
• 客户端
  • connect()
  • connect_ex()
• 公用
  • recv()
  • send()
  • sendall()
  • recvfrom()
  • sendto()
  • close()
  • getsocketname()
  • getpeername()
  • setsockopt(level,optname,value)
  • getsockopt(level,optname[.buflen])
  • settimeout(timeout)
  • gettimeout()
  • fileno()
  • setblocking(flag)
  • makefile()

服务器

__School__ = '河北大学'

__ProductName__ = 'PyCharm'

__Project__ = 'Pyproject'

__Time__ = '2019-05-09 '

import socket
import sys

class Main(object):

    def __init__(self):
        pass

    def main(self):
        serverSocket=socket.socket(socket.AF_INET,socket.SOCK_STREAM)
        host=socket.gethostname()

        port=8001
        serverSocket.bind((host,port))

        serverSocket.listen(5)

        while True:
            clientSocket,add=serverSocket.accept()

            print('连接地址：%s'%str(add))

            msg='欢迎来到源域'+'\r\n'

            clientSocket.send(msg.encode('utf8'))

            clientSocket.close()
        pass


if __name__ == '__main__':
    Main().main()

客户端

__School__ = '河北大学'

__ProductName__ = 'PyCharm'

__Project__ = 'Pyproject'

__Time__ = '2019-05-09 '

import socket
import sys

class Main(object):

    def __init__(self):
        pass

    def main(self):
        clientSocket=socket.socket(socket.AF_INET,socket.SOCK_STREAM)

        host=socket.gethostname()

        port=8001

        clientSocket.connect((host,port))

        msg=clientSocket.recv(1024)
        clientSocket.close()

        print(msg.decode('utf8'))
        pass


if __name__ == '__main__':
    Main().main()

服务器端

客户端