Python Socket 简单应用

# Echo server program
import socket

HOST = socket.gethostname()    # Symbolic name meaning all available interfaces
PORT = 50007                   # Arbitrary non-privileged port

s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.bind((HOST, PORT))

s.listen(1)
conn, addr = s.accept()
print('Connected by', addr)

while True:
data = conn.recv(1024)
if not data: break
conn.send(data)
conn.close()

# Echo client program
import socket

HOST = socket.gethostname()   # The remote host
PORT = 50007                  # The same port as used by the server

s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)

s.connect((HOST, PORT))

s.send(b'Hello, world')

data = s.recv(1024).decode('utf-8')

s.close()

print('Received', repr(data))