In normal mode
1. If you want to replace only one letter, enter FA to find the next letter A, enter r and type the letter you want to replace a.
2. If you want to go directly to edit a lot of letters, enter R, enter the REPLACE State, start any edit, press ESC to exit.
3. If you want to recall the previous step, enter u directly in normal mode
4. >>,<< is the shrink symbol
To view the current shrinking settings, first go to commandline, then enter set Shiftwidth?
If you are not satisfied with the current shrinkage distance, you can set it up and enter CommandLine, and set shiftwidth=10
5. Previous write if a letter is found, such as entering FA in normal mode, then the next a is searched.
6. What if I want to find a word or a string? Input/about (This is shown in the lower left corner) [/backslash],
If you want to continue looking for the next, then enter N (down) or n (UP)
Vim Find and replace