kali 无法定位软件包

2020.1 kali 原因：

过程：

vi /etc/apt/sources.list

# 官方源
# deb-src http://http.kali.org/kali/ kali-rolling main non-free contrib
deb http://mirrors.ustc.edu.cn/kali kali-rolling main non-free contrib
deb http://http.kali.org/kali kali-rolling main non-free contrib

 其他

# 中科大源
deb http://mirrors.ustc.edu.cn/kali kali main non-free contrib
deb-src http://mirrors.ustc.edu.cn/kali kali main non-free contrib
deb http://mirrors.ustc.edu.cn/kali-security kali/updates main contrib non-free
# 阿里云kali源
deb http://mirrors.aliyun.com/kali kali main non-free contrib