from django.db import connection

  select_sql = 'select * from model'
    datas = pd.read_sql(select_sql, connection)  # <pandas.core.frame.DataFrame'>
    temp = datas.iloc[:, 2:]  # 取出所有数据的 除了前两个字段
    tp = temp.sum(axis=0)  # 所有字段纵向相加
    top_sorts = tp.sort_values(ascending=False)  # 降序排序
    top3 = top_sorts.index[:4]
    top_recommends = top3.values.tolist()