Add comments to multiple lines in vim and delete comments

Button operation:

Add Note: Ctrl + V to enter the column editing mode. Move the cursor down or up, mark the beginning of the line to be annotated, and press I in uppercase, then insert the annotator, such as "#", and then press ESC. All of them will be commented out.

Delete comment: Similarly, press Ctrl + V to enter the column selection mode, move to the cursor, select the annotator, and press d. OK.

 

Use the replacement command:

: % S/^/#/g to add the # comment at the beginning of the line of all content

: 2, 50 s/^/#/g in 2 ~ Add comment # At the beginning of line 50

In turn, replacement is a delete operation.