python - UDP pinger 分配

Question

我一直在尝试在 python 中编写一个 UDP 客户端/服务器（如底部所示）。代码工作并运行。但是，我相信这条线有问题：

    try:
        data, server = client_socket.recvfrom(1024) **# THIS LINE** 
        end = time.time()
        elapsed = end - start
        print(f'{data} {pings} {elapsed}')

当我运行代码时，它会按我的意愿打印十次计数器、当前时间和“请求超时”。我不知道为什么！我做了很多研究并尝试了其他人的代码，但没有一个有效！请帮忙！

服务器：

import random
from socket import *

serverSocket = socket(AF_INET, SOCK_DGRAM)
serverSocket.bind(('', 12000))

while True:
    rand = random.randint(0, 10)    
    message, address = serverSocket.recvfrom(1024)
    message = message.upper()

    if rand < 4:
        continue
    serverSocket.sendto(message, address)

客户：

import time
import socket

count = 0

for pings in range(10):
    client_socket = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
    client_socket.settimeout(1.0)
    message = b'test'
    address = ("127.0.0.1", 12000)

    start = time.time()
    client_socket.sendto(message, address)

    count = count +1
    print(count, "\n", "current time: ", start)


    try:
        data, server = client_socket.recvfrom(1024)
        end = time.time()
        elapsed = end - start
        print(f'{data} {pings} {elapsed}')

    except socket.timeout:
        print('REQUEST TIMED OUT')

标签： pythonnetworkingserverudp