python读取doc

import os, time, fnmatch
from docx import Document

class search:

  def __init__(self, path, search_string, file_filter):

    self.search_path = path
    self.search_string = search_string
    self.file_filter = file_filter

    print ("Search %s in %s..." % (
      self.search_string, self.search_path
    ) )

    print ("_" * 80)
    time_begin = time.time()
    file_count = self.walk()

    print ("_" * 80)
    print ("%s files searched in %0.2fsec." % (
      file_count, (time.time() - time_begin)
    ))

#遍历所有的文件，记录文件数量
  def walk(self):
    file_count = 0
    for root, dirlist, filelist in os.walk(self.search_path, followlinks=True):
      for filename in filelist:
        for file_filter in self.file_filter:
          if fnmatch.fnmatch(filename, file_filter):
            self.search_file(os.path.join(root, filename))
            file_count += 1
    return file_count

#遍历文件中的字符串，并且剪切显示出来
  def search_file(self, filepath):
    d = Document(filepath)
    for para in d.paragraphs:
      if self.search_string in d.paragraphs:
        print(filepath)
        self.cutout_content(content)

#剪切字符串并且显示
  def cutout_content(self, content):
    current_pos = 0
    search_string_len = len(self.search_string)
    for i in xrange(max_cutouts):
      try:
              #从current_pos位置往后寻找self.search_string个字符串
        pos = content.index(self.search_string, current_pos)
      except ValueError:
        break
#将显示窗口定义为寻找到的关键字向前向后各content_extract个字符
      content_window = content[ pos - content_extract : pos + content_extract ]
      print (">>>", content_window.encode("String_Escape"))
      current_pos += pos + search_string_len
    print

#主程序入口
if __name__ == "__main__":
  search_path = r"c:\Users\Administrator\Desktop"
  file_filter = ("*.docx",".doc") # fnmatch-Filter
  search_string = "history"
  content_extract = 35 #获取摘要35
  max_cutouts = 20 #显示窗口20
  search(search_path, search_string, file_filter)