我的第三次作业

姓名：曹月

学号：2017035107003

码云地址：https://gitee.com/caoyue1/third_assignment/tree/master

程序分析

1.将文档读取到缓冲区

def process_file(dst):     
    try:    
        p = open(dst,'r')
    except IOError as s:
        print (s)
        return None
    try:     
        bvffer = p.read()
    except:
        print ("Read File Error!")
        return None
    p.close()

    return bvffer

2.添加处理缓冲区 bvffer代码，统计每个单词的频率，存放在字典word_freq

def process_buffer(bvffer):
    if bvffer:
        word_freq = {}
        
        bvffer = bvffer.lower()
        for fh in ',.!?+-_':

           bvffer = bvffer.replace(fh, " ")
        words = bvffer.strip().split()
        for word in words:
            word_freq[word] = word_freq.get(word, 0) + 1

        return word_freq

3.输出 Top 10 的单词

def output_result(word_freq):
    if word_freq:
        sorted_word_freq = sorted(word_freq.items(), key=lambda v: v[1], reverse=True)
        for item in sorted_word_freq[:10]:  # 输出 Top 10 的单词
            print (item)

4.运行程序

if __name__ == "__main__":
    import argparse
    parser = argparse.ArgumentParser()
    parser.add_argument('dst')
    args = parser.parse_args()
    dst = args.dst
    bvffer = process_file(dst)
    word_freq = process_buffer(bvffer)
    output_result(word_freq)

程序截图

1.运行大、小文件

2.运行结果