摘要：
在Ubuntu中安装软件的时候经常碰到E: Unable to correct problems, you have held broken packages.的错误，顾名思义是因为某些软件包冲突导致，幸运的话sudo apt-get update && sudo apt-get upgrade 可... 阅读全文
学以致用focus on Python , C++, and some interest in Go and R |