VIM uses tips

You can operate the contents in the benchmark :
ci’、ci"、ci(、ci[、ci{、ci< - Change the text content in these paired punctuation marks separately
di’、di"、di( or dib、di[、di{ or diB、di< - Delete the text content in these paired punctuation marks respectively
yi’、yi"、yi(、yi[、yi{、yi< - Copy the text content of these paired punctuation marks separately
vi’、vi"、vi(、vi[、vi{、vi< - Select the text content in these paired punctuation marks respectively
（ps： However, I can't achieve it here ）

Common mode

roaming

j  Down 
30j  Move down the 30 That's ok 
k  Up 
h  towards the left 
l  towards the right 
0  To the beginning of the line 
^  To the first character at the beginning of the line , If there's a space in front of it 
$  end 
gg  Fast to the header 
G  Fast to the end of the file 
100G  Jump to the first place 100 That's ok 

Copy ：y

yy  Duplicate a row 
10yy  Copy down 10 That's ok 
yw  Copy a word at the beginning of the cursor 
y$  Copy the cursor to the end of the line 
yfB  Copy the cursor to the first uppercase B In the middle 
y2fB  Copy the cursor to the second uppercase B In the middle 

shear : x

x  Cut one character at a time , If it's at the end of the line , It's cutting forward 
3x  Cut three 
xp  Exchange two characters at the end of a non line , If you follow bs become sb

Delete ：d
The deleted content is put on the clipboard , Press p You can paste it to other places

dd  Delete a line 
200dd  Delete 200 That's ok 
dw  Delete a word  （ I like it best ）
df”  Delete to the first double quotation mark that appears 

Paste : p

p  Paste copied or cut content 
3p  Cut or paste the content three times 

Visualization mode

Visualization pattern is a very useful pattern , Press... In normal mode v You can enter .
Use h、j、k、l To roam , Select the appropriate content .

ctrl+v Block mode
Realization ： Add every line in the file to ArrayList in ：

1)  In command mode , perform %s/$/");/g, Appending data at the end of a line 
2)  Press ESC Enter normal mode , And use gg Back to the beginning of the line 
3)  Press ctrl+v Enter visualization mode , Then press G To the end of the file 
4)  Ignore the editor reaction , Press I Enter insertion mode , Input list.add("
5)  Press ESC Back to normal mode , It can be found that the above input has taken effect in each line 

Command mode

%s/$/sth/  Add... At the end of the line sth
%s/\^M//g  Replace dos A newline ,\^M Use ctrl+v + Enter You can enter 
:g/\^\s*$/d  Delete empty lines and lines with only spaces 
%s/#.*//g  Delete # The following characters 

Find string
Regular knowledge can also be applied *
In normal mode , Press down / Go straight to , Enter the corresponding string and press OK .

n  Find the next match 
N  Find the last match 
2n  Find the second match below 

 According to the line Numbers ：set nu

Macro recording （cool man~）

1)  Press down gg To the beginning of the line 
2)  Press down qa Macro recording ,a It's a tag name that we started 
3)  Press I Enter insertion mode , Input list.add("
4)  Press ESC Enter normal mode , Then press $ Jump to the end of the line 
5)  Press j Go to the next line , Then press ^ Back to the beginning of the line 
6)  Press again q End macro recording 
7)  Input @a Trigger macro to test the recording effect 
8)  Input [email protected] Repeat macro 100 Time , That is to say, it affects the following 100 That's ok 

other

r  Replace character 
ggVG  Future generations 
u  Restore changes 
J  Merge the next line 
gU  Turn to uppercase at the cursor 
ggguG  Capitalize the whole article into lowercase 
%  Jump to the next match , If in <div> Press up %, Then jump to the corresponding </div>
:e /tmp/a  Open in the same editor /tmp/a file . The same editor's buffer is shared by the clipboard , Easy to copy in multiple files 
bp  Jump to the previous buffer 
bn  Jump to the next buffer 

Exit editor

wq  Save the current file and exit 
wqa  Save all files and exit 
q!  Do not save , immediate withdrawal 
qa!  There are multiple files open , Exit at the same time 

Reference resources ：
https://zhuanlan.zhihu.com/p/70874396