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世上的所有事物都能被定义,除了你自己。
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# -*- coding: gbk -*-
import requests
class TiebaSpider:
def __init__(self, tieba_name):
self.tieba_name = tieba_name
# 获取贴吧的url
self.url_temp = "http://tieba.baidu.com/f?kw=" + tieba_name + "&ie=utf-8&pn={}"
# 模拟浏览器的请求头
self.headers = {
"User-Agent": "Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/75.0.3770.100 Safari/537.36"}
def get_url_list(self): # 1.构造url列表
# url_list = []
# for i in range(5):
# url_list.append(self.url_temp.format(i*50))
# return url_list
return [self.url_temp.format(i * 50) for i in range(5)]
def parse_url(self, url): # 发送请求,获取响应
print(url)
response = requests.get(url, headers=self.headers)
return response.content.decode()
def save_html(self, html_str, pageNum): # 保存html字符串
file_path = "{}-第{}页.html".format(self.tieba_name, pageNum)
with open(file_path, "w", encoding="utf-8") as file: # "贴吧-第一页.html"
file.write(html_str)
def run(self): # 实现主要逻辑
# 1.构造url列表
url_list = self.get_url_list()
# 2.遍历,发送请求,获取响应
for url in url_list:
html_str = self.parse_url(url)
# 3.保存
pageNum = url_list.index(url) + 1 # 页码数
self.save_html(html_str, pageNum)
if __name__ == '__main__':
tieba_spider = TiebaSpider("lol")
tieba_spider.run()