1 import requests
 2 keyword = "Python"
 3 try:
 4      kv = {‘wd‘:keyword}
 5      r = requests.get("http://www.baidu.com/s",params=kv)
 6      print(r.request.url)
 7      r.raise_for_status()
 8      print(len(r.text))
 9 except:
10      print("爬取失敗")

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