emacs 快速入门
break line: ctrl + e, ctrl + j / ctrl + m
save file: ctrl + x, ctrl + s
exit: ctrl + x, k, enter
terminate input: ctrl + g
cut: ctrl + w
copy: alt + w
paste: ctrl + y
cut to end: ctrl + k
delete one character after: ctrl + d
delete one character before: delete
delte one word after: alt + d
delte one word before: alt + del
up: ctrl + up
down: ctrl + down
left: ctrl + b
right: ctrl + f
start line: ctrl + a
end line: ctrl + e
exit: ctrl + x, ctrl + c
open file: ctrl + x, ctrl + f
revoke: ctrl + x, u
maxium emacs: ctrl + z
down query: ctrl + s
query and replace: alt + %
top: alt + < last: alt + >
emacs 学习指南》》https://wizardmerlin.github.io/posts/ba598705/
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