Question

我正在编写一个用户将输入句子（没有标点符号）的任务，程序会将这些单词存储在列表中，然后将每个单词替换为创建的列表中单词的位置。关于如何处理这个问题我没有太多想法，因为我是python的新手，但是我假设我应该首先将这些单词存储在Excel数据库中，然后将它们放在列表中。如果我能得到一些帮助，我将非常感谢，谢谢。

有关该任务的详细信息，请查看此屏幕截图：Task Details

Answer 1

这是一个如何做的快速示例。记住做自己的工作，仅用于学习。

sentence = input("Write a sentence: ")

sentence_array = sentence.lower().split(" ") # Split lowercased sentence to an array
individuals = [] # List for individual words

for x in range(0, len(sentence_array)): # Loop to find individual words
    if sentence_array[x] not in individuals: # If word is not picked already...
        individuals.append(sentence_array[x]) # ...append it to individuals list

positions = [] # List that contains positions of the words
for x in range(0, len(sentence_array)): # Loop to append positions to a list
    positions.append(individuals.index(sentence_array[x]) + 1) # Appending indexes of words, notice +1

with open("Result file.txt", "w") as f: # Write results to a file
    for x in range(0, len(positions)): # Loop to write indexes
        if x == len(positions)-1: # If last position, write line break instead of comma
            f.write("%s\n" % positions[x])
        else:
            f.write("%s," % positions[x])
    for y in range(0, len(individuals)): # Loop to write words
        if y == len(individuals)-1: # If last word, write line break instead of comma
            f.write("%s\n" % individuals[y])
        else:
            f.write("%s, " % individuals[y])

可以在Result file.txt

中查看输出

Answer 2

您应该展示一些努力并就代码提出更具体的问题。这是一个使用numpy数组的简短解决方案：

#ask for sentence, split the words by space and put the words in an array
sentence = np.array(raw_input("Enter a sentence: ").split(' '))

#find unique words and save their indices in the array/sentence (np.unique does not keep the order)
unique_words, index = np.unique(sentence, return_index = True)

#get unique words in sorted order by sorting the indices
unique_sorted = sentence[np.sort(index)]

#loop through sentence and return indices of the words in sorted unique words
result = [np.where(unique_sorted == word)[0][0] for word in sentence]

请注意，输出将移1，因为python索引从0开始：

>>> sentence = np.array(raw_input("Enter a sentence: ").split(' '))
Enter a sentence: ask not what your country can do for you ask what you can do for your country

>>> result
[0, 1, 2, 3, 4, 5, 6, 7, 8, 0, 2, 8, 5, 6, 7, 3, 4]

使用数组和东西可能会太复杂，这就是为什么你应该尝试与列表不同的东西。但是你得到了基本的想法：

获取您的输入，拆分
按排序顺序查找唯一字词
对于句子中的每个单词，在排序数据中查找索引

我需要一些帮助写一个excel文件

2 个答案: