How to repeat the previous move in vim

Question

For example, 3j has been executed. Is there a key to repeat this command?

Answer 1

http://www.vim.org/scripts/sc...

This plug-in...the official one should not be allowed...

Answer 2

You can use macros, please refer to it

q{register} Start recording, for example qa
Enter the command to record, for example 3j
Enter q to end recording
@{register} Use the command, for example @a

Answer 3

Try it with . (dot)

Answer 4

; This key.