擅长:python、mysql、java
<p>正如@niemmi在注释中所说的,修复变量名后,代码运行良好。它不会像你发布的那样运行。你知道吗</p>
<pre><code># test.py
num_arr = [1, 2, 3, 4]
print(num_arr)
counter = len(num_arr)
while (counter > 1):
valHold = (sum(num_arr[:2]))
del num_arr[:2]
num_arr.reverse()
num_arr.append(valHold)
num_arr.reverse()
print (num_arr)
counter -= 1
</code></pre>
<hr/>
<pre><code>$ python test.py
[1, 2, 3, 4]
[3, 3, 4]
[6, 4]
[10]
</code></pre>