Question

我正在尝试进行比较，以查看列表中的单词是否在字典中或字词中。我正在编写一个解码txt文件的程序。

这里说的是一行：

['Now', 'we', 'are', 'engaged', 'in', 'a', 'great', 'civil', 'war,']

我想去字典并查看是否有任何这些单词。如果是这样，我会将字符串放在一起并写入文件。我想知道的是如何比较两者。我首先小写列表中的第一个单词，因为所有单词都是小写的。

我的字典的例子是：

{"now": "", "help": "", "you": ""}

但是还有更多的话。

如果你想查看我的整体代码，请问：）

这是我制作字典的代码。每一行都是一个单词。

f = open('dictionary.txt', "r")
dictionary = {}
for line in f:
    word = line.strip()
    dictionary[word] = ""
print dictionary

更新

def CaeserCipher(string, k):
    #setting up variables to move through
    upper = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'*10000
    lower = 'abcdefghijklmnopqrstuvwxyz'*10000

    newCipher = ''

    #looping each letter and moving it k times
    for letter in string:
        if letter in upper:
            if upper.index(letter) + k > 25:
                indexPosition = (upper.index(letter) + k) 
                newCipher = newCipher + upper[indexPosition]
            else:
                indexPosition = upper.index(letter) + k
                newCipher = newCipher + upper[indexPosition]
        elif letter in lower:
            if lower.index(letter) + k > 25:

                indexPosition = (lower.index(letter) + k)  
                newCipher = newCipher + lower[indexPosition]
            else:
                indexPosition = lower.index(letter) + k
                newCipher = newCipher + lower[indexPosition]
        else:
            newCipher = newCipher + letter


    return newCipher

f = open('dictionary.txt', "r")
dictionary = set()
for line in f:
    word = line.strip()
    dictionary.add(word)
print dictionary

#main file
#reading file and encrypting text

f = open('encrypted.txt')
string = ''
out = open("plain1.txt", "w")
#working through each line
for line in f:
    for k in range(26):

        line = [CaeserCipher(word, k) for word in line]
        print line


        #listSplit = re.split('[,\[\]]', line)
        #print listSplit
        string = ("".join(line))
        listOfWords = string.split()
        lowercase_line = [word.lower() for word in listOfWords]
        out.write(dictionary.intersection(lowercase_line))  


f.close()
out.close()

Answer 1

如果您愿意将字典表示为一个集合，则可以使用intersection查找字典中存在的所有单词。

dictionary = {"now", "help", "you"}
line = ['Now', 'we', 'are', 'engaged', 'in', 'a', 'great', 'civil', 'war,']
lowercase_line = [word.lower() for word in line]
#todo: also filter out punctuation, so "war," becomes "war"
print dictionary.intersection(lowercase_line)

结果：

set(['now'])

Answer 2

if any(word.lower() in your_word_dict for word in line_list):
   ' '.join(line_list)
   # write to file

检查单词列表中的任何单词是否在您的词典中，以及是否将它们加入字符串并将其写入文件

解码比较列表到字典

2 个答案: