获得成绩列表
        :return: json array

def get_score(self):
        """
        获得成绩列表
        :return: json array
        """
        html = self.__get_score_html()
        soup = BeautifulSoup(html)
        div = soup.find_all('div', class_='Section1')[0]
        tag_ps = div.find_all('p')
        del tag_ps[0]
        result = []
        '''
        #one object
        {
           'year':'第一学期',
           'score_list':[
                {
                    'id':'0800040',
                    'name':'C++'
                    'type':'必修',
                    'xuefen':'1',
                    'score':'95',
                    'remark':'重修'
                }
           ]
        }
        '''
        # 最后一个为第二课堂学分,删除之
        tables = soup.find_all('table', attrs={'class': 'MsoTableGrid', 'border': '1'})
        del tables[len(tables) - 1]
        # 第x个学期
        year_num = 1
        for table in tables:
            try:
                trs = table.find_all('tr')

                tern_info = {
                    'year': year_num,
                    'score_list': []
                }
                # 遍历每一列
                for tr in trs:
                    tds = tr.find_all(self.__get_td)
                    if len(tds) == 0:
                        continue
                    lesson_info = {
                        'id': _.trim(tds[0].get_text()),
                        'name': _.trim(tds[1].get_text()),
                        'type': _.trim(tds[2].get_text()),
                        'xuefen': _.trim(tds[3].get_text()),
                        'score': _.trim(tds[4].get_text()),
                        'remark': _.trim(tds[5].get_text())
                    }

                    tern_info['score_list'].append(lesson_info)
                year_num += 1
                result.append(tern_info)
            except Exception as e:
                _.d(e.message)
        return result