2.py

scores = {'语文':95,'数学':95,'英语':95}
def get_b(scores):
    score=0

    for subject,a in scores.items():
        score+=a
    print('现在的总分是%d'%score)
    b_score = score/len(scores)
    print('现在的平均分是%d'%b_score)
get_b(scores)