#接受端代码（更改IP地址即可，其余无须修改） import socket #使用IPV4协议，使用UDP协议传输数据 s=socket.socket(socket.AF_INET, socket.SOCK_DGRAM) #绑定端口和端口号，空字符串表示本机任何可用IP地址 s.bind(('100.100.100.100', 5000)) #更改IP地址即可 while True: data, addr=s.recvfrom(1024) #显示接收到的内容 print('received message:{0} from PORT {1} on {2}'.format(data.decode(),addr[1], addr[0])) if data.decode().lower() == 'bye': break s.close( )
#接受端代码（更改IP地址即可） import socket import sys s=socket.socket(socket.AF_INET, socket.SOCK_DGRAM) s.sendto(sys.argv[1].encode() , ("100.100.100.100" ,5000)) #假设100.100.100.100是接收端机器的IP地址 s.close( )
将两段代码制作成PY文件放在桌面
然后就按图中操作即可
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用requests库的get函数访问360浏览器20遍，打印返回状态，text（）内容，计算text（）属性和content（）属性所返回网页内容的长度
代码
import requests from bs4 import BeautifulSoup def getHTMLText(url): try: r=requests.get(url,timeout=30) soup=BeautifulSoup(r.text) r.raise_for_status() r.encoding='utf-8' return r.text,r.status_code,len(r.text),r.encoding,len(soup.text) except: return "" url="https://www.baidu.com" #这是一个网页链接，自行更改即可 for i in range(20): print(i) print(getHTMLText(url))
爬大学排名网页内容
import requests from bs4 import BeautifulSoup import csv import pandas as pd allUniv=[] def getHTMLText(url): try: r=requests.get(url,timeout=30) r.raise_for_status() r.encoding='utf-8' return r.text except: return "" def fillUnivList(soup): data=soup.find_all('tr') for tr in data: ltd=tr.find_all('td') if len(ltd)==0: continue singleUniv=[] for td in ltd: singleUniv.append(td.string) allUniv.append(singleUniv) def printUnivList(num): print("{:^4}{:^10}{:^5}{:^8}{:^10}".format("排名","学校名称","省市","总分","年费")) for i in range(num): u=allUniv[i] print("{:^4}{:^10}{:^5}{:^8}{:^10}".format(u[0],u[1],u[2],u[3],u[6])) return u def main(num): url = 'http://www.zuihaodaxue.cn/zuihaodaxuepaiming2018.html' html = getHTMLText(url) soup = BeautifulSoup(html, "html.parser") fillUnivList(soup) printUnivList(num) print("结果如上所示") main(100)
import requests from bs4 import BeautifulSoup import csv allUniv=[] def getHTMLText (url): try: r = requests.get(url,timeout=30) r.raise_for_status() r.encoding = 'utf-8' return r.text except: return "" def fillUnivList (soup): data = soup.find_all('tr') for tr in data: ltd = tr.find_all('td') if len(ltd)==0: continue singleUniv=[] for td in ltd: singleUniv.append(td.string) allUniv.append(singleUniv) write_csv(allUniv) def printUnivList (num): print("{:^4}{:^10}{:^5}{:^8}{:^10}". format("排名", "学校名称", "省市","总分","培养规模")) for i in range (num): u=allUniv[i] print("{:^4}{:^10}{:^5}{:^8}{:^10}".format(u[0], u[1],u[2],u[3],u[6])) return u def write_csv(list): name = ['排名', '学校名称', '省份', '总分', '生源质量（新生高考成绩得分）', '培养结果（毕业生就业率）', '社会声誉（社会捐赠收入·千元）', '科研规模（论文数量·篇）', '科研质量（论文质量·FWCI）', '顶尖成果（高被引论文·篇）', '顶尖人才（高被引学者·人）', '科技服务（企业科研经费·千元）', '成果转化（技术转让收入·千元）'] with open('C:/Users/86188/Desktop/新建文件夹/最好大学排名.csv', 'w') as f: writer = csv.writer(f) writer.writerow(name) for row in list: writer.writerow(row) def main (num) : url = 'http://www.zuihaodaxue.cn/zuihaodaxuepaiming2016.html' html = getHTMLText (url) soup = BeautifulSoup(html, "html.parser") fillUnivList(soup) printUnivList(num) print("排名情况如上所示") main(100)
结果如下
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HTML之初学习
<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>lalalalalala(lalalalala.com)</title> </head> <body> <h1>HTML初尝试</h1> <p>3132 啦啦啦啦啦。</p> </body> </html>
