win7以上需要使用管理员权限操作。

复制代码 代码如下:

# -*- coding: utf-8 -*-

import os

import glob

import shutil

def format_file_list(files):

all_files_str = ""

for i in range(len(files)):

all_files_str += str(i)+":"+files[i]+"n"

return all_files_str

hosts_path = "C:WindowsSystem32driversetc"

files = os.listdir(hosts_path)

os.chdir(hosts_path)

if os.getcwd() != hosts_path:

print("Switch Dir to System32 Error,check permission!npwd:"+os.getcwd())

exit()

hosts_files = glob.glob("host*")

choosed_file_idx = int(input("Choose Hosts File Index:n"+format_file_list(hosts_files)))

files_num = len(hosts_files)

if (choosed_file_idx < 0 or choosed_file_idx >= files_num) :

print("Please choose a file in the lists!")

exit()

print("Choosed idx:{0},file:{1}.".format(choosed_file_idx,hosts_files[choosed_file_idx]))

shutil.copy("hosts","hosts.bak")

shutil.copy(hosts_files[choosed_file_idx],"hosts")

print("Copy ok,then flush dns...")

os.system("ipconfig /flushdns")