#!/usr/bin/env python

import sys
import re

def comment_finder(text):
    pattern = re.compile( r'//.*?$|/\*.*?\*/', re.DOTALL | re.MULTILINE)
    result = pattern.findall(text)
    return result

def print_command(filename):

    codefile = open(filename,'r')
    commentfile = open(filename+".txt",'w')
    lines=codefile.read()
    codefile.close()
    #the list of comments
    list_of_comments = comment_finder(lines)
    for comment in list_of_comments:
        #print comment[0:2]
        if comment[0:2] == "//":
                comment_to_write = comment[2:]
        else:
            comment_to_write = comment[2:-2]
        if len(comment_to_write)!=0:
            commentfile.write(comment_to_write)
        commentfile.write('\n')
    commentfile.close()

if __name__ == "__main__":
    for filename in sys.argv[1:]:
        print_command(filename)

在linux下面 转到当前目录 ./get_comment.py *
或者 指定文件类型