UDP协议编程与获取一个网页内容

Posted 2020-12-15 hx494682

一、UDP协议编程

（一）接收端代码

import socket
s=socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
s.bind((‘‘, 5000))
while True:
    data, addr = s.recvfrom(1024)
    data = data.decode()
    print(‘received message:{0} from PORT {1[1]} on {1[0]}‘.format(data,
                                                                  addr))
    if data.lower() == ‘bye‘:
        break
s.close( )

（二）发送端代码

import socket
import sys
s=socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
s.sendto(sys.argv[1].encode() , ("192.168.1.107" ,5000))
s.close( )

（三）方法

（四）运行效果截图

二、获取一个网页内容

import requests
def gethtmlText(self):
    try:
        r = requests.get(url, timeout=30)
        r.raise_for_status()
        r.encoding = ‘utf-8‘
        return r.text
    except:
        return ""
url = "http://www.baidu.com"
print(getHTMLText(url))

运行效果截图：