day26作业

from socket import *
import subprocess

ip_port = ('127.0.0.1', 8080)
back_log = 5
buffer_size = 1024

tcp_server = socket(AF_INET, SOCK_STREAM)
tcp_server.bind(ip_port)
tcp_server.listen(back_log)

while True:
    conn, addr = tcp_server.accept()
    while True:
        try:
            cmd = conn.recv(buffer_size)
            if not cmd: break
            cmd = cmd.decode('utf-8')
            print('收到客户端命令', cmd)
            res = subprocess.Popen(cmd, shell=True, 
                                   stderr=subprocess.PIPE, 
                                   stdin=subprocess.PIPE, 
                                   stdout=subprocess.PIPE
                                   )
            err = res.stderr.read()  
            if err:
                cmd_res = err 
            else:
                cmd_res = res.stdout.read() 

            if not cmd_res: 
                cmd_res = '该命令没有返回结果'.encode('gbk')
            conn.send(cmd_res) 
        except Exception:
            break

    conn.close()

tcp_server.close()

客户端：
from socket import *

ip_port = ('127.0.0.1', 8080)

tcp_client = socket(AF_INET, SOCK_STREAM)
tcp_client.connect(ip_port)

while True:
    cmd = input('请输入命令').strip()
    if not cmd: continue
    if cmd == 'quit': break
    cmd = cmd.encode('utf-8')
    tcp_client.send(cmd)
    cmd_res = tcp_client.recv(1024) 
    print('命令执行的结果是', cmd_res.decode('gbk'))