violence can be prevented through education, professional counseling, and legal intervention (法律幹預). Unlike what some people think, family violence is no minor issue. We should attach due importance to this problem and prevent it by effective means.
Emacs Vi
向上移動光標 C-p k
向下移動光標 C-n j
向左移動光標 C-b h
向右移動光標 C-f l
保存 C-x C-s :w
退出 C-x C-c :q
光標移到首行 A-< 1G
光標移到末行 A-> G
刪除光標位置字符 C-d x
撤銷 C-_ u
創建TeX環境 C-c C-e
Vi特有命令
:1,10s/big/small/g 把從第1行-10行所有big換成small