Question

我的函数将字符串作为输入，它是文件的名称，应返回字典。字典将具有键/值对，其中键是与单词长度对应的整数，值是文件中出现的具有该长度的单词数。

该文件包含以下句子：

and then the last assignment ended and everyone was sad

理论上，返回的词汇看起来像这样：

{ 3:5, 4:2, 5:1, 8:1, 10:1}

到目前为止，我有这个：

"""
COMP 1005 - Fall 2016
Assignment 10
Problem 1
"""
def wordLengthStats(filename):
    file = open(filename, 'r')
    wordcount={}
    for line in file.read().split():
        if line not in wordcount:
            wordcount[line] = 1
        else:
            wordcount[line] += 1
    for k,v in wordcount.items():
        print (k, v)
    return None

def main():
    '''
    main method to test your wordLengthStats method
    '''
    d = wordLengthStats("sample.txt")
    print("d should be { 3:5, 4:2, 5:1, 8:1, 10:1} ")
    print("d is", d)

if __name__ == '__main__':
    main()

这句话只是一个例子，我需要做到这一点，以便任何输入都可以。任何有关解决这个问题的帮助都将不胜感激。

Answer 1

对于句子中的每个单词，您需要在字典中添加一个条目，其中单词的长度是关键：

def wordLengthStats(filename):
    file = open(filename, 'r')
    wordcount={}
    for word in file.read().split():

        key = len(word)

        if key not in wordcount:
            wordcount[key] = 1
        else:
            wordcount[key] += 1

    for k,v in wordcount.items():
        print (k, v)                               
    return None

发生长度相同的单词

1 个答案: