擅长:python、mysql、java
<p>我不确定我是否正确地捕捉到了它,但是你想要这个代码吗?你知道吗</p>
<pre><code>a = [4, 5, 6, 7, 9, 2, 6, 8, 9]
sigma = 0
exc_ind = []
flag = False
for ind, item in enumerate(a):
if item == 6 and not flag:
flag = True
exc_ind.append([])
exc_ind[-1].append(ind)
elif item == 9 and flag:
exc_ind[-1].append(ind)
flag = False
elif not flag:
sigma += item
print(sigma)
print(exc_ind)
</code></pre>
<p>结果是:</p>
<pre><code>11
[[2, 4], [6, 8]]
</code></pre>