just for windows
update your hosts to make your net faster
input python fasthost.py --github.com to update your hosts, github.com can be any domain
input python fasthost.py -read to review your hosts
input python fasthost.py -revert to revert your hosts
暂时只支持windows系统
更新host文件，上网更快，解决访问慢的苦恼
输入 python fasthost.py --github.com 更新hosts文件, github.com可以是任意域名
输入 python fasthost.py -read 查看hosts文件
输入 python fasthost.py -revert 还原hosts文件