1、操作目录与文件名
#!/usr/bin/env python
#-*- coding: utf-8 -*-

import os,re
import shutil 
import time



用listdir搜索    
def search_OFD_old(my_pattern, diretory):
    try:
        names = os.listdir(diretory)        
    except os.error:
        print "error"
        return
    for name in names:
        fullname = os.path.normpath(os.path.join(diretory, name))
        if os.path.isfile(fullname):
            result = my_pattern.search(name)
            if result and name.lower().endswith("txt"):
                shutil.copy(fullname, dest_dir)            
        elif os.path.isdir(fullname):
            search_OFD(my_pattern, fullname)

用walk函数搜索
def search_OFD(my_pattern, diretory):
    for root,dirs,files in os.walk(diretory):
        for filename in files:
            result = my_pattern.search(filename)
            if result and filename.lower().endswith("txt"):
                fullname = os.path.join(root, filename)
                shutil.copy(fullname, dest_dir)

目录不存在,则创建:
if not os.path.isdir(dest_dir):
    os.makedirs(dest_dir)

匹配名称
import re
pattern = re.compile("1ABC")
pattern.search(var)