python 中 socket 使用

socket 实现 tcp server

import socket
soc=socket.socket() #默认 family=-1，type=-1, proto=-1, fileno=None
'''
if fileno is None:
    if family == -1:
        family = AF_INET
    if type == -1:
        type = SOCK_STREAM
    if proto == -1:
        proto = 0
'''

soc.bind((ip,port)) # ip and port should in a tuple
while 1:
    server.listen(6)    
    remote_socket, remote_adder = server.accept() # res is a tuple contain cotain socket object and remote ip like (socket,remote_IP)
    print(remote_adder, remote_socket)    
    while 1:
        time.sleep(0.01)
        try:
            res = remote_socket.recv(1024)
            if res:
                print(res.decode())
            remote_socket.send(b'cmd mysql')
            res = remote_socket.recv(1024)

            if res:
                res = res.decode('utf-8')
            print(res)

        except ConnectionAbortedError:
            print('done')
            break

 socket 实现 tcp client

import socket
socket =socket.socket()
socket_client=socket.connect((ip,port))
socket_client.send(b'Hello World')
socket_client.send('Action speak louder than words'.encode('ascii'))
socket_client.sendall('你好'.encode('gbk')
socket.setdefaulttimeout(10) #socket module invoke
socket_client.settimeout(10) # socket object invoke。