擅长:python、mysql、java
<p>你平均打了3次电话。所以输出要打印三次</p>
<p>修改<code>result</code>函数如下</p>
<pre><code>def result():
average_result = average()
if(average_result>=90):
print("Excellent")
elif(50 <= average_result <= 89):
print("very good")
elif(average_result<=49):
print("fail")
result()
</code></pre>