python: ajax_error DBNull”的对象无法转换为类型“String”

Question

需求：1.登录账户 2.提交答题

分析：

我的请求：

 # 答题
answerUrl = 'https://bazhong.xueanquan.com/JiaTing/ajax/FamilyEduCenter.EscapeSkill.SeeVideo,FamilyEduCenter.ashx?_method=TemplateIn2&_session=rw'

aHeaders = {
    'Host': 'bazhong.xueanquan.com',
    'Origin':'https://bazhong.xueanquan.com',
    'X-Requested-With':'XMLHttpRequest',

    # application/json; charset=utf-8
    # application/x-www-form-urlencoded
    # text/xml
    'Content-Type':'application/x-www-form-urlencoded',
    'Referer': 'https://bazhong.xueanquan.com/JiaTing/EscapeSkill/SeeVideo.aspx?gid=486&li=980',
    'User-Agent': 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_2) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/65.0.3325.162 Safari/537.36',
    'Cookie':'xxxxxxxxx'
        }

Answer 1

http://blog.csdn.net/qin_zhangyongheng/article/details/7824435