Python网络编程server端和client端代码

#client端代码
import socket
client = socket.socket()
client.connect(('127.0.0.1',3999))
while True:
    content=input('>>>')
    client.send(bytes(content,'utf-8'))
    content=client.recv(1024)
    print(str(content,encoding='utf-8'))

client.close()

#server端代码
import socket
server = socket.socket()
server.bind(('127.0.0.1',3999))
server.listen(7)
s, addr = server.accept()
print('connect addr: {}'.format(addr))
while True:
    content=s.recv(1024)
    if len(content) == 0:
        break

    s.send(content)
    print(str(content,encoding='utf-8'))

s.close()

#server端代码
import socket
server = socket.socket()
server.bind(('127.0.0.1',3999))
server.listen(7)
s, addr = server.accept()
print('connect addr: {}'.format(addr))
while True:
    content=s.recv(1024)
    if len(content) == 0:
        break

s.send(content)
    print(str(content,encoding='utf-8'))

s.close()