1、python 字典的用法

from collections import OrderedDict

dict =OrderedDict()

dict['foo']=3

dcit['aol']=1

2、python中删除指定类型的文件

import sys, csv , operator

import os

import glob

for i in range(0, 10):

path = "C:\\Folder_" + str(i)

for infile in glob.glob( os.path.join(path, '*.csv') ):

os.remove(infile)

3、python执行可执行文件后返回可执行文件的输出值

import subprocess

proc = subprocess.Popen('cmd', shell=True)

cme = proc.communicate()

ret = proc.poll();

参考网址：https://stackoverflow.com/questions/1872329/storing-python-dictionary-entries-in-the-order-they-are-pushed

参考网址：http://blog.csdn.net/vernice/article/details/46424921