擅长:python、mysql、java
<p>两件事:</p>
<ol>
<li>您必须使用<code>split()</code>来拆分数字</li>
</ol>
<p>例如</p>
<pre><code>['1 4 15 12 8'].split() => ['1', '4', '15', '12', '8']
</code></pre>
<ol start=“2”>
<li>您必须在列表中添加数字</li>
</ol>
<pre><code>import sys
lines = ['1 4 15 12 8']
lst = []
for line in lines:
for x in line.split():
value = int(x.strip())
lst.append(value)
avg = sum(lst)/len(lst)
print(avg)
</code></pre>
<p>输出:</p>
<pre><code>1.0
2.5
6.666666666666667
8.0
8.0
</code></pre>