Vim Script and configuration

============set optional===========
Set nu//Display line number
Set Rnu//Display relative line number cursor behavior 0 up and down rows increment relativenumber
Set numberwidth//setting line number width
Set wrap//over window width wrap
Set TextWidth//Sets text width per line
Let mapleader= ","//Map Prefix
Let maplocalleader= ","//The specified file type is valid
Set showtabline = 1//tab Help Tab-page



======================autocmd======================
Autocmd Event pattern cmd//event for monitored events pattern command multiple events for event-filtered mode cmd are separated by commas
Event:bufnewfile,bufread,bufwritepre
Evnet:filetype xxx//help autocmd-events
The Autocmd command replicates, each time the configuration file is refreshed, a copy of the command is performed, and the action is executed multiple times after the event occurs. Workaround: autocmd!
==================autocmd Group ========================
Augroup Testgroup
autocmd! Clear the group before the same name to eliminate replication, without this will before the same name group combination
Autocmd xxxx
Autocmd xxxx
Augroup END

===============command==================
echo//Bottom line echoing
Echom//Bottom row echo and cache available message view
Message//View cache output
Map,nmap,imap,vmap,omap//Set Shortcut key unmap,nnumap...//Cancel shortcut noremap,nnoremap...//non-recursive shortcut <buffer> local mapping <nop&gt ; no operation Key omap==operator-pending mapping
Iabbrev [<buffer>] ADN and//insert mode abbreviation INSERT mode input ADN then tap space back automatically replace and [] content is selected
Set, setlocal//SET option value
Execute "string"//String when command execution
Normal XXXX//hitting XXXX in normal mode
normal! XXXX//Ignore XXXX mapping function similar to normal XXXX and cannot parse <cr> enter (execute "normal! Gg/foo\<cr>dd "To resolve this issue)



==================================variable=====================================
Let &number//optional variable
Let &l:number//local Optional
Let @a = "Hello"//register variable @ "Copy stored register variable @/search/xxx
string-to-shape: correctly converts the beginning consecutive digits to the beginning of a number, otherwise 0
Help Internal-variables
==================================condition====================================
If condition XXX endif
If condition xxx elseif xxx else xxx endif
The set ignorecase control is case sensitive and is used as a comparison
==? Case insensitive comparison ignores set ignorecase
==#//Case sensitive comparison ignores set ignorecase help EXPR4
===================================function====================================
1 function definitions
function Meow ()//functions must start with an uppercase letter
echo "Hello World"
Endfunction//Default return 0
function Getmeow ()
Return "Hello World"
Endfunction
Call Meow () echo Getmeow ()//function calls
Call Getmeow ()//does not display the content, called calls is to see the function as an expression
2 function parameters
function DisplayName (name)
Ehco "Hi, my name is"
echo A:name//How to use A:argname
Endfunction
3 variable Parameter---read-only variable
function Args (foo,...)
echo A:foo//foo first parameter optional
echo a:0//number of variable parameters
echo a:1//variable parameter the first parameter a:n and so on
echo a:000//variable argument list, Echom when ECHO is set to variable argument list
Endfunction
==========================string====================
Echo ' That ' s enough '//this ' s enough ' special case
Ehco '//'///' does not parse the literal meaning string of special characters
echo "//"///"" To resolve special characters
Ps:. + Connection string


==========================================function api========================================
Substitute//s/xx/xx/g Replace command


==========================help==========================
Help scrolling//movement of text







====================================fold marker==================================
Zm{motion} Create collapsed
ZC off Folding
Zo Open fold



==================================== Common Configuration =================================
"Complement background color
Highlight Pmenu Guibg=black Guifg=black
Highlight Pmenusel Guibg=black Guifg=black
"Complement background color terminal
Highlight Pmenu Ctermbg=darkgrey Ctermfg=black
Highlight Pmenusel Ctermbg=lightgrey Ctermfg=black

Vim Script and configuration