如何将所有输出列表合并为一个列表

Question

我正在为我的项目尝试以下代码片段：

scrap=['Theodore von Kármán Lecture', 'Science Journey: "The Origin of Photosynthesis: A Window into the Intricate Relationship Between Life and the World Around It"', 'Science Journey: "Addressing Energy Storage Challenges: Making Electrolytes That Can Help Batteries Store More Energy"', 'Science Journey: "Defects in Crystals: The Tiniest Engineering Tool"']

for i in scrap:
    words_in_scrap = i.split() 
    # print("words_in_scrap=",words_in_scrap) 
    for j in words_in_scrap:
      words = j.lower()
      # print(words)
      for k in words: 
        # print(k)
        if k in punc:
          words = words.replace(k,"")
          # print(words)
      # print(k)
      clean = words      #corrected lot
      # print(clean)
      c_list = []
      c_list.append(clean)
      print(c_list)

我得到了这个输出：

['theodore']
['von']
['kármán']
['lecture']
['science']
['journey']
['the']
['origin']
['of']
['photosynthesis']
['a']
['window']
['into']
['the']
['intricate']
['relationship']
['between']
['life']
['and']
['the']
['world']
['around']
['it']
['science']
['journey']
['addressing']
['energy']
['storage']
['challenges']
['making']
['electrolytes']
['that']
['can']
['help']
['batteries']
['store']
['more']
['energy']
['science']
['journey']
['defects']
['in']
['crystals']
['the']
['tiniest']
['engineering']
['tool']

我希望将所有这些输出列表放入一个列表中，例如：

['theodore','von','karman','science',.............]

我知道这些单独的输出是由于循环而产生的，我尝试为此执行 .append() 并以 c_list 结束，结果它们是独立的列表。对此的任何解决方案都将受到高度重视和赞赏。谢谢！

Answer 1

如果你追加没关系，因为上面的行把 lsit 擦干净了。像 c_list = [] 一样去掉这个，把它放在主循环之前，把 print(c_list) 放在主 for 循环之外和之后，看看是否可行。

Answer 2

让我们看看这 3 个语句，每个语句都在循环的每次迭代中执行：

c_list = []
c_list.append(clean)
print(c_list)

因此，对于每个单词，您都在创建一个新列表，将单词放入其中，然后打印出来。相反，您想在循环之前创建一个新列表，放入您想要的所有单词，然后在循环完成后打印所有这些单词。

Answer 3

scrap=['Theodore von Kármán Lecture', 'Science Journey: "The Origin of Photosynthesis: A Window into the Intricate Relationship Between Life and the World Around It"', 'Science Journey: "Addressing Energy Storage Challenges: Making Electrolytes That Can Help Batteries Store More Energy"', 'Science Journey: "Defects in Crystals: The Tiniest Engineering Tool"']
punc = [".","/",":"]
c_list = []
for i in scrap:
    words_in_scrap = i.split() 
    # print("words_in_scrap=",words_in_scrap) 
    for j in words_in_scrap:
      words = j.lower()
      # print(words)
      for k in words: 
        # print(k)
        if k in punc:
          words = words.replace(k,"")
          # print(words)
      # print(k)
      clean = words      #corrected lot
      # print(clean)

      c_list.append(clean)

print(c_list)

我假设 punc 是标点符号列表。

这适合你吗？

输出：

['theodore', 'von', 'kármán', 'lecture', 'science', 'journey:', '"the', 'origin', 'of', 'photosynthesis:', 'a', 'window', 'into', 'the', 'intricate', 'relationship', 'between', 'life', 'and', 'the', 'world', 'around', 'it"', 'science', 'journey:', '"addressing', 'energy', 'storage', 'challenges:', 'making', 'electrolytes', 'that', 'can', 'help', 'batteries', 'store', 'more', 'energy"', 'science', 'journey:', '"defects', 'in', 'crystals:', 'the', 'tiniest', 'engineering', 'tool"']

如何将所有输出列表合并为一个列表

How to merge all of the output lists into one list

python

loops

list

flatten

output