第八次作业

# coding=gb2312
import sys
import string

if len(sys.argv) == 1 or sys.argv[1] in {"-h", "--help"}:
    print("usage: uniqueword filename_1 filename_2 ... filename_n")
    sys.exit()
 
else:
    words = {}
    strip = string.whitespace + string.punctuation + string.digits + "\"'"
 
    for filename in sys.argv[1:]:
        for line in open(filename):
            for word in line.split():
                word = word.strip(strip)
                if len(word) >= 1:
                    words[word] = words.get(word, 0) + 1

在Ubuntu中实现运行。