requests和beautifulSoup4

request库

https://blog.youkuaiyun.com/u011815404/article/details/81710392

• 获取cookie

cookie_dict = response.cookies.get_dict() # 拿到cookie的字典类型

• request相信参数介绍

https://www.cnblogs.com/wupeiqi/articles/6283017.html

• request.session()

用于保存客户端的历史访问信息

• 使用json的两种写法

    # response = requests.post(url=url,json=post_dict,cookies=ALL_COOKIE_DICT)
    response = requests.post(url=url,data=bytes(json.dumps(post_dict,ensure_ascii=False),encoding='utf-8'))

    response = requests.post(url=url,data=bytes(json.dumps(post_dict,ensure_ascii=False),encoding='utf-8'))

ensure_ascii=False 是让json不要把中文转成unicode编码，默认为True

bytes是将这个json字符串转换成utf-8的字节类型，不然data里面默认转换成latin的字节类型

beautifulSoup库

https://www.cnblogs.com/felixwang2/p/8711746.html