设置vim 永久显示行号 - electrocrazy的博客 - CSDN博客
https://blog.csdn.net/electrocrazy/article/details/79035216
vim显示行号、语法高亮、自动缩进的设置 - 奋斗!! - CSDN博客
https://blog.csdn.net/chuanj1985/article/details/6873830
设置vim 永久显示行号 - electrocrazy的博客 - CSDN博客
https://blog.csdn.net/electrocrazy/article/details/79035216
vim显示行号、语法高亮、自动缩进的设置 - 奋斗!! - CSDN博客
https://blog.csdn.net/chuanj1985/article/details/6873830