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大佬们,为啥抓取的内容可以打印出来,但是保存的话就是只是最后一页的内容,前面的内容保存不了啊
代码和图都发了
- import requests
- import bs4
- import lxml
- import time
- headers = {"user-agent":"Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/78.0.3904.116 Safari/537.36",
- "Host":"quotes.toscrape.com"}
- def open_url(url):
- res = requests.get(url, headers=headers)
- soup = bs4.BeautifulSoup(res.text, 'lxml')
- return soup
-
- def find_quote(new_url):
-
- quotes =[]
- targets = open_url(new_url).find_all('div', class_='quote')
- for each in targets:
- quotes.append(each.span.text)
-
- result = []
- lengh = len(quotes)
- for i in range(lengh):
- result.append(quotes[i] + '\n\n')
-
- return result
-
- def down_load(quote):
- with open('quote.txt', 'w', encoding='utf-8') as f:
- for each in quote:
- print(each)
- f.write(each)
- time.sleep(0.1)
-
- def main():
- url = "http://quotes.toscrape.com"
- page = 3
- for i in range(1, int(page) + 1):
- new_url = url + '/page/' + str(i) + '/'
- quote = find_quote(new_url)
- down_load(quote)
- if __name__ == "__main__":
- main()
-
复制代码
你这打开方式是w,而且还循环打开?
这样就会覆盖上一次写入的内容了
建议在main里打开,并将文件对象
当成参数传入
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