[已解决]爬取豆瓣时获取数据出了问题

傲视群熊￥

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。

最佳答案

月排行榜 / 总排行榜

suchocolate

2021-3-31 10:23:32

只定义了函数，没用调用运行函数。

1. import urllib.request
   
2. 
   
3. 
   
4. def askurl(url):
   
5.     head = {
   
6.         "User-Agent": "Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/78.0.3904.108 Safari/537.36"}
   
7.     req = urllib.request.Request(url, headers=head)
   
8.     response = urllib.request.urlopen(req)
   
9.     html = response.read().decode('utf-8')
   
10.     print(html)
    
11. 
    
12. 
    
13. if __name__ == '__main__':
    
14.     askurl("https://movie.douban.com/top250?start=")

复制代码

跳转到最佳答案楼层

suchocolate

只定义了函数，没用调用运行函数。

1. import urllib.request
   
2. 
   
3. 
   
4. def askurl(url):
   
5.     head = {
   
6.         "User-Agent": "Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/78.0.3904.108 Safari/537.36"}
   
7.     req = urllib.request.Request(url, headers=head)
   
8.     response = urllib.request.urlopen(req)
   
9.     html = response.read().decode('utf-8')
   
10.     print(html)
    
11. 
    
12. 
    
13. if __name__ == '__main__':
    
14.     askurl("https://movie.douban.com/top250?start=")

复制代码