用另一个列表中的元素填充列表中的元素

Question

我想按顺序用元素填充结果中的空白。

resultelse=["hello", "you", "are"]
result=["","",""]
for a in resultelse:
   result[result.index("")] = a
   print(result)

['hello', '', '']
['hello', 'you', '']
['hello', 'you', 'are']

但是我只想要最后一套

Answer 1

您可以跟踪算法执行过程中的进度。您唯一需要做的就是让它完成。只需将打印内容移到循环之外即可：

resultelse=["hello", "you", "are"]
result=["","",""]
for a in resultelse:
   result[result.index("")] = a
print(result)