How does vim change the default Ctrl-f shortcut key to Ctrl-d?

  question, vim

Because Ctrl-f is the shortcut key for searching in general editors, but vim is the shortcut key for turning pages down. It’s very strange.

Default setting, vimCtrl f(forward) is to turn down a page,Ctrl b(backward) is to turn up one page,Ctrl d(down) is to turn down half a page.Ctrl u(up) is to turn up half a page.

Ctrl is not recommended. for common operations such as page turning, individuals are accustomed to using < Leader > related key positions, such as < Leader > being set as the space bar.<Leader> dTurn over half a page, it may not be so awkward.

If you are interested in such key setting, you can see more.Here.