python中Socket.accept()的返回值是什么

I made a simple server and a simple client with socket module in python.

服务器:

# server.py
import socket

s = socket.socket()
host = socket.gethostname()
port = 1234
s.bind((host, port))

s.listen(5)

while True:
    c, addr = s.accept()
    print 'Got connection from', addr
    c.send('Thank you for your connecting')
    c.close()

和客户:

#client.py
import socket

s = socket.socket()

host = socket.socket()
port = 1234

s.connect((host, port))
print s.recv(1024)

我启动了服务器，然后启动了 4 个客户端，并在服务器的控制台中得到如下输出:

Got connection from ('192.168.0.99', 49170)
Got connection from ('192.168.0.99', 49171)
Got connection from ('192.168.0.99', 49172)
Got connection from ('192.168.0.99', 49173)