使用文本文件和列表重新创建句子

Question

我对 Python 比较陌生，我目前正在开发一个压缩程序，该程序使用包含单词在列表中的位置和组成句子的单词列表的列表。到目前为止，我已经在两个函数中编写了我的程序，第一个函数； 'compression'，获取组成句子的单词和这些单词的位置。我的第二个函数叫做'recreate'，这个函数使用他的列表来重新创建句子。然后将重新创建的句子存储在一个名为 recreate.txt 的文件中。我的问题是单词的位置和组成句子的单词没有被写入它们各自的文件，并且没有创建和写入“重新创建”文件。任何帮助将不胜感激。谢谢:)

sentence = input("Input the sentence that you wish to be compressed") 
sentence.lower()
sentencelist = sentence.split() 
d = {} 
plist = [] 

wds = []
def compress():     
    for i in sentencelist:
        if i not in wds:
            wds.append(i)
    for i ,j in enumerate(sentencelist):
        if j in (d):  
            plist.append(d[j]) 
        else:
            plist.append(i)      
    print (plist) 

    tsk3pos = open ("tsk3pos.txt", "wt")    

    for item in plist:
        tsk3pos.write("%s\n" % item)    

    tsk3pos.close()                     
    tsk3wds = open ("tsk3wds.txt", "wt")    

    for item in wds:
        tsk3wds.write("%s\n" % item)    
    tsk3wds.close() 

    print (wds) 

def recreate(compress): 
    compress()
    num = list()
    wds = list()
    with open("tsk3wds.txt", "r") as txt: 
        for line in txt:
            words += line.split()

    with open("tsk3pos.txt", "r") as txt:
        for line in txt:
            num += [int(i) for i in line.split()]



    recreate = ' '.join(words[pos] for pos in num)

    with open("recreate.txt", "wt") as txt:
        txt.write(recreate) 

---

已更新 我已经修复了所有其他问题，除了 recreate 函数，它不会创建“recreate”文件，也不会用单词重新创建句子，虽然 它使用位置重新创建句子。

def recreate(compress): #function that will be used to recreate the compressed sentence.
    compress()
    num = list()
    wds = list()

    with open("words.txt", "r") as txt: #with statement opening the word text file
        for line in txt: #iterating over each line in the text file.
            words += line.split() #turning the textfile into a list and appending it to num

    with open("tsk3pos.txt", "r") as txt:
        for line in txt:
            num += [int(i) for i in line.split()]

    recreate = ' '.join(wds[pos] for pos in num)

    with open("recreate.txt", "wt") as txt:
        txt.write(recreate) 

    main()



def main():
    print("Do you want to compress an input or recreate a compressed input?")
    user = input("Type 'a' if you want to compress an input. Type 'b' if you wan to recreate an input").lower()
    if user not in ("a","b"):
        print ("That's not an option. Please try again")
    elif user == "a":
        compress()
    elif user == "b":
        recreate(compress)
    main()

main()

Answer 1

一种更简单（但效率较低）的方法：

 recreate_file_object  =  open ( "C:/FullPathToWriteFolder/recreate.txt"   ,   "w"   )
 recreate_file_object.write ( recreate ) 
 recreate_file_object.close ( )