大家好，又见面了，我是你们的朋友风君子。
1.更新软件源
sudo vim /etc/apt/sources.list
2.选择比较合适的源(选择一个即可）
#中科大
deb http://mirrors.ustc.edu.cn/kali kali-rolling main non-free contrib
deb-src http://mirrors.ustc.edu.cn/kali kali-rolling main non-free contrib
#阿里云
deb http://mirrors.aliyun.com/kali kali-rolling main non-free contrib
deb-src http://mirrors.aliyun.com/kali kali-rolling main non-free contrib
