kali更新的时候老是无法定位软件包，网络上大部分中科大、阿里云kali源都不可用，都千篇一律，最后找了这个，网易的，还不错，贴出来大家看看：
# 163 源 deb http://mirrors.163.com/debian wheezy main non-free contrib deb-src http://mirrors.163.com/debian wheezy main non-free contrib deb http://mirrors.163.com/debian wheezy-proposed-updates main non-free contrib deb-src http://mirrors.163.com/debian wheezy-proposed-updates main non-free contrib deb-src http://mirrors.163.com/debian-security wheezy/updates main non-free contrib deb http://mirrors.163.com/debian-security wheezy/updates main non-free contrib