每日作业：4/20

 1、

方法一：

服务端：os.popen

import socket
import os
iphone=socket.socket(socket.AF_INET,socket.SOCK_STREAM)
iphone.setsockopt(socket.SOL_SOCKET,socket.SO_REUSEADDR,1)
iphone.bind(("127.0.0.1",9000))
iphone.listen(5)
while True:
    conn,addr=iphone.accept()
    print('接到来自%s的电话' % addr[0])
    while True:
        try:
            cmd=conn.recv(1024)
            if not cmd:
                print("客户端:{} 已经关闭连接".format(addr[0]))
                break
            print("客户端命令:{}".format(cmd.decode("utf-8")))
            cmd_stat=os.system(cmd.decode("utf-8"))
            # print(cmd_stat)
            if not cmd_stat:
                cmd_data=os.popen(cmd.decode("utf-8")).read()
                conn.send(cmd_data.encode("utf-8"))
            else:
                conn.send("命令不存在".encode("utf-8"))

        except Exception:
            print("客户端:{} 非正常关闭连接".format(addr[0]))
            break
    conn.close()
iphone.close()

客户端:

import socket
iphone=socket.socket(socket.AF_INET,socket.SOCK_STREAM)

iphone.connect(("127.0.0.1",9000))
while True:
    msg=input("请输入命令:>>>").strip()
    if len(msg) == 0: continue
    if msg == "exit()":
        iphone.close()
        break

    else:
        iphone.send(msg.encode("utf-8"))
        data=iphone.recv(1024)
        print(data.decode("utf-8"))

iphone.close()

 方法二：（不存在的命令）

import socket
import subprocess

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

phone.bind(("127.0.0.1",9000))
phone.listen(5)

#循环连接
while True:
    conn,addr=phone.accept()
    # print(conn,addr)

    #循环通信
    while True:
        try:
            cmd=conn.recv(1024)
            if not cmd:
                print("客户端:{} 已经断开连接".format(addr[0]))
                break
            print("命令名称：%s" %cmd.decode("utf-8"),)
            obj = subprocess.Popen(cmd.decode("utf-8"), shell=True,
                                   stdout=subprocess.PIPE,
                                   stderr=subprocess.PIPE,
                                   )
            obj.wait()
            cmd_stat=subprocess.Popen.poll(obj)
            if not cmd_stat:

                cmd_data = obj.stdout.read()
                if not cmd_data:conn.send("命令:{} 执行成功".format(cmd.decode("utf-8")).encode("gbk"))
                print(cmd_data.decode("gbk"))
                conn.send(cmd_data)
            else:
                err_data = obj.stderr.read()
                conn.send(err_data)
        except Exception:
            print("客户端:{} 非正常退出".format(addr[0]))
            break
    conn.close()
phone.close()

import socket

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

phone.connect(("127.0.0.1",9000))

#循环通信
while True:
    cmd=input("请输入命令:>>>").strip()
    if not cmd:continue
    if cmd == "exit()":
        phone.close()
        break
    phone.send(cmd.encode("utf-8"))

    cmd_data=phone.recv(1024)
    print(cmd_data.decode("gbk"))

phone.close()