论坛 › Python交流 › 爬取豆瓣时获取数据出了问题

傲视群熊￥ 发表于 2021-3-31 09:16:48

爬取豆瓣时获取数据出了问题

import urllib.request

def main():

    askurl("https://movie.douban.com/top250?start=")

def askurl(url):
    head = {"User-Agent" : "Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/78.0.3904.108 Safari/537.36"}
    req = urllib.request.Request(url,headers=head)
    html = ''
    response = urllib.request.urlopen(req)
    html= response.read().decode('utf-8')
    print(html)


求大佬，为什么我这个什么都打印不出来？详情参见图片。

suchocolate 发表于 2021-3-31 10:23:32

本帖最后由 suchocolate 于 2021-3-31 10:25 编辑

只定义了函数，没用调用运行函数。import urllib.request


def askurl(url):
    head = {
      "User-Agent": "Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/78.0.3904.108 Safari/537.36"}
    req = urllib.request.Request(url, headers=head)
    response = urllib.request.urlopen(req)
    html = response.read().decode('utf-8')
    print(html)


if __name__ == '__main__':
    askurl("https://movie.douban.com/top250?start=")

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