Python练习15

Python日常练习

题目：

现试题文件夹下有一个文本文件input.txt，里面包含一段英文文本，内容如下：

Hi, Mike. I am learning Python. Python is very interesting. I love

it.Do you think it is interesting? Hope you love it.

要求：

读取这个文件并统计文本中每个单词出现的次数，并要求将统计结果按

如下示例格式输出。

注：

单词的分割符约定为空格、换行、逗号（“，”）、句号（“.”）、问号（“?”）。

输出样例：

('it', 3)
('am', 1)
('Hope', 1)
('Python', 2)
('very', 1)
('also', 1)
('is', 2)
('Mike', 1)
('Do', 1)
('you', 2)
('Hi', 1)
('love', 2)
('interesting', 2)
('think', 1)
('I', 2)
('learning', 1)

代码实现

import re

filenameczj = 'input.txt'


def createfileczj():
    tt = '''Hi, Mike. I am learning Python. Python is very interesting. I love 
          it.Do you think it is interesting? Hope you love it. '''
    fczj = open(filenameczj, "w")
    fczj.write(tt)
    fczj.close()


def extractWords(line):
    '''extract words form a line of string'''
    words = re.split(r'[.\?\t\n, ]+', line)
    return words


# end of extractWords

def wordCount(filename):
    ''' count words from a file'''
    ########## code start ##########
    lines = []
    with open(filename) as f:
        lines = f.readlines()

    words = []
    for line in lines:
        words.extend(extractWords(line))

    wordCount = dict()
    for word in words:
        if len(word.strip()) > 0:
            wordCount[word] = wordCount.get(word, 0) + 1
    ########## code end ##########
    for item in wordCount.items():
        print(item, end=";")


# end of wordCount

def main():
    createfileczj()
    wordCount(filenameczj)


if __name__ == '__main__':
    main()

代码效果

有趣的代码需要多加练习！