Python-插入變量（多個列表）

Question

我想在列表中的另一個列表的索引處插入標點符號：

for x in range(len(final1)):
    final1.insert(punc_num[x], punct[x])- WHY WONT THIS WORK?  

任何幫助，請感激:-)

完整代碼：

f = open("file.txt","r") 
sentence= f.read()
print (sentence)

punctuations = ("'", "!", "(", ")", "-", "[", "]", "{", "}", ";", ":", '"', "<", ">", ".", "/", "?", "@", "#", "$", "%", "^", "&", "*", "_", "~", ",")

punc_num=[]

for x in sentence:
    if x in punctuations:
        punc_num.append(sentence.index(x))

print(punc_num)


punct=[]

for x in sentence:
    if x in punctuations:
        punct.append(x)

print(punct)





no_punct= ""

for y in sentence:
    if y not in punctuations:
        no_punct = no_punct + y

print (no_punct)





no_punct=no_punct.split()

final= (" ".join(sorted(set(no_punct), key=no_punct.index)))
print(final)
storing=[]

for x in no_punct:

    storing.append (no_punct.index(x))

print (storing)


final1= (" ".join(sorted(set(no_punct), key=no_punct.index)))
print(final1)




for x in range(len(final1)):
    final1.insert(punc_num[x], punct[x])

Answer 1

首先，當您使用final1.insert() ， final1是字符串，而不是列表。 您可以通過執行以下操作來更新它：

final1_list = []
for x in range(len(punc_num)):
    final1_list.insert(punc_num[x], punct[x])
final1 = "".join(final1_list)

第二，定義punc_num ，使用list.index()方法。 由於list.index()將始終返回其參數的第一個匹配項，因此任何給定的標點符號都將始終具有相同的索引，無論其在字符串中出現多少位置。 您可以將該循環更改為此：

punc_num=[]
for x in sentence:
    if x in punctuations:
        index = 0
        while index + sentence[index:].index(x) in punc_num:
            index += sentence[index:].index(x) + 1
        punc_num.append(index + sentence[index:].index(x))

您的整個程序應如下所示：

f = open("file.txt","r")
sentence = f.read()
print (sentence)

punctuations = ("'", "!", "(", ")", "-", "[", "]", "{", "}", ";", ":", '"', "<", ">", ".", "/", "?", "@", "#", "$", "%", "^", "&", "*", "_", "~", ",")

punc_num=[]

for x in sentence:
    if x in punctuations:
        index = 0
        while index + sentence[index:].index(x) in punc_num:
            index += sentence[index:].index(x) + 1
        punc_num.append(index + sentence[index:].index(x))

print(punc_num)


punct=[]

for x in sentence:
    if x in punctuations:
        punct.append(x)

print(punct)





no_punct= ""

for y in sentence:
    if y not in punctuations:
        no_punct = no_punct + y

print (no_punct)



no_punct=no_punct.split()

final= (" ".join(sorted(set(no_punct), key=no_punct.index)))
print(final)
storing=[]

for x in no_punct:

    storing.append (no_punct.index(x))

print (storing)


final1= (" ".join(sorted(set(no_punct), key=no_punct.index)))
print(final1)




final1_list = list(final1)
for x in range(len(punc_num)):
    final1_list.insert(punc_num[x], punct[x])
final1 = "".join(final1_list)