<p>我试图写一个函数,返回一个分数的平均分数,我的语法显然是不对的。有什么建议吗?在</p>
<pre><code>average = sum(first_score, second_score, third_score, fourth_score, fifth_score)
if average >= 90 or <= 100:
print('A')
elif average >=80 or <= 90:
print('B')
elif average >= 70 or <= 79:
print('C')
elif average >= 60 or <= 69:
print('D')
else:
print('F')
</code></pre>