VS Code键盘快捷方式以显示用于golang的在线API文档？

I'ms using vscode and "go for Visual Studio Code" and vim emulation plugin to set up a golang IDE (keyboard is using vim style)

When I mouse hover an API, the online API document can be displayed. But is there a keyboard shortcut that can trigger the API document display?

You are looking for editor.action.showHover shortcut:
The default key is: Ctrl+K Ctrl+I but not works with vim enabled, so you may change it to e.g.: Ctrl+K Ctrl+K, this works for me:

You can open this editor by going to the menu under File > Preferences > Keyboard Shortcuts. (Code > Preferences > Keyboard Shortcuts on Mac)
then search for Show Hover (or just Hover) and change shortcut for editor.action.showHover, see:

see: