练习——网络编程

#服务器
import socket
import subprocess
server = socket.socket()
server.bind(
    (‘127.0.0.1‘,9000)
)
server.listen(5)

while True:
    conn,addr = server.accept()
    print(addr)
    while True:
        try:
            data = conn.recv(1024).decode(‘utf-8‘)
            print(data)
            if len(data) == 0:
                continue
            if data == ‘q‘:
                break
            obj = subprocess.Popen(
                data,shell=True,stdout=subprocess.PIPE,stderr=subprocess.PIPE
            )
            msg = obj.stdout.read()
            error = obj.stderr.read()
            if msg:
                print(msg.decode(‘gbk‘))
                conn.send(msg)
            else:
                print(error.decode(‘gbk‘))
                conn.send(error)
        except Exception as e:
            print(e)
            break
    conn.close()

#客户端
import socket
client = socket.socket()
client.connect(
    (‘127.0.0.1‘,9000)
)

while True:
    cmd = input(‘请输入命令‘).strip()
    client.send(cmd.encode(‘utf-8‘))
    if cmd == ‘q‘:
        break
    data = client.recv(1024).decode(‘gbk‘)
    print(data)