import requests
from bs4 import BeautifulSoup
res requests.get(http://news.sina.com.cn/china/)#获取目标网页
res.encoding utf-8#抓取网页出现乱码
#print(res.text)
soup BeautifulSoup(res.text,html.parser)#爬取网页
for news in soup.select(.news-item): if le…
import java.util.Scanner; public class 阶乘 { public static void main(String[] args) { Scanner sc new Scanner(System.in); System.out.println("输入一个数字"); int n sc.nextInt(); System.out.println("结果为:"f(n)); } public s…