豆瓣电影分类排行榜 - 剧情片爬虫

Tips：

• 爬取的页面：https://movie.douban.com/typerank?type_name=%E5%89%A7%E6%83%85&type=11&interval_id=100:90&action=
• 发起get请求，通过对返回的json数据进行解析，选择自己所需的数据保存即可
• 而具体如何寻找构造请求的url以及相应参数，就不细讲了（写起来太麻烦了，大家读起来也累 doge)

import requests,json

class DouBan:
    
    def __init__(self):
        self.url = "https://movie.douban.com/j/chart/top_list?"
        self.ua = {"user-agent": "Mozilla/5.0 (Windows NT 6.2; WOW64) AppleWebKit/535.24 (KHTML, like Gecko) Chrome/19.0.1055.1 Safari/535.24"}
        
    def get_info(self,param):
        resp = requests.get(url=self.url,
                     params = param,
                            headers=self.ua)
        info = resp.json()
        self.pares_infos(info)
        
	# 该函数是为了后期进行可视化，剔除了“剧情”类型，自己爬虫练习时可以不调用该函数	
    def list_to_str(self,ls):
        x = ""
        for i in ls:
            if i != "剧情": 
                x = x + i + " "
        return x.strip(" ")
    
    def pares_infos(self,infos):
        ls = [["电影名称","评分","评价总数","排名","类型","地区","上映日期(大陆)","豆瓣主页","ID"]]
        for i in infos:
            ls.append([i["title"],i["score"],str(i["vote_count"]),str(i["rank"]),self.list_to_str(i["types"]),i["regions"][0],i["release_date"],i["url"],i["id"]])
            # 将self.list_to_str(i["types"])更改为i["types"],即 不调用函数 list_to_str()
        self.write(ls)
        
    def write(self,ls):
        f = open("豆瓣数据.csv","w",encoding="utf-8-sig")
        for row in ls:
            f.write(",".join(row) + "\n")
        f.close()
        
    def main(self):
        limit = input("请输入爬取的数量：")
        param = {
            "type":"11",
            "interval_id": "100:90",
            "action":"",
            "start":"0",
            "limit":limit
        }
        self.get_info(param)

if __name__ == "__main__":
    spider = DouBan()
    spider.main()