模块常用snippet

压缩，文件操作，数据库，md5，json，

压缩

import os, sys, time
import zipfile

# 解压
filename = 'callofdutyblackopszombies_1349649132343_my.zip'
filedir = 'data/'  # 解压后放入的目录
r = zipfile.is_zipfile(filename)
if r:
    starttime = time.time()
    fz = zipfile.ZipFile(filename,'r')
    for file in fz.namelist():
        print(file)  #打印zip归档中目录
        fz.extract(file,filedir)
    endtime = time.time()
    times = endtime - starttime
else:
    print('This file is not zip file')
print('times' + str(times))