爬取100道python题
正则表达式：import re
import requests
def gethtml(url):
try:
r=requests.get(url)
r.raise_for_status()
r.encoding=r.apparent_encoding
return r.text
except:
print("处理异常")
def extrinfo(txt,i):
try:
r=re.findall(r"</strong>.+?</p>",txt)
r=r.replace("</strong>","")
r=r.replace("</p>","")
print(str(i)+":\t"+r)
except:
print(str(i)+"\t"+"处理异常")
def main(i):
url="https://www.runoob.com/python/python-exercise-example"+str(i)+".html"
extrinfo(gethtml(url),i)
if __name__ == "__main__":
for i in range(1,101):
main(i)
效果如图：
页:
[1]