如何打印包含新元素的列表

Question

我试着通过flask打印html页面上的关键字列表，flask更新后出现在doc文件中。但是打印时它会附加到现有的列表中。我试着在每次需要新文件时清除它，但是没有如何使用我能修好吗

def find_sentences(paragraph):
global ref_data_lists,ref_lists,sentences,ref_data_list,ref_list
end = True
# sentences = []
while end > -1:
    end = find_sentence_end(paragraph)
    if end > -1:
        sentences.append(paragraph[end:].strip())
        paragraph = paragraph[:end]
sentences.append(paragraph)
sentences.reverse()
ref_list.clear()
ref_data_list.clear()
for sentence in sentences:
    # sentence=re.sub(r'^(\[\d+\])', '', sentence)
    ref = re.search(r'^\[\d+\]', sentence, re.MULTILINE)
    ref_data = re.search(r'(\[\d+\]\s*){1,}', sentence)

    if ref:

        print(ref_list)
        ref_list.append(sentence)
    ref_lists = '\n------------------\n'.join(ref_list)

    if ref_data:


        print(ref_data_list)
        ref_data_list.append(sentence)
    ref_data_lists = '\n------------------\n'.join(ref_data_list)

print(ref_list)
print(ref_data_list)
# for refs in ref_list:
#   for ref_data in ref_data_list:
#      r=refs[:3]
#     if r in ref_data:
#        print(refs,"------------>",ref_data)

return

Answer 1

将重置插入循环中，如下所示：

for sentence in sentences:
    ref_list.clear()
    ref_data_list.clear()

相反

ref_list.clear()
ref_data_list.clear()
for sentence in sentences: