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Shortcut key:
command + shfit + 0 : ios documentation and reference
command + shift + o : jump to the specified file
command + B : build
command + R : run
command + shift + k : clean project
command + shift + f : full search
command + f : search in file
command + L : jump line
command + N : new
command + z : restore
command + shift + z : reverse restore
control + command + ← / → : the last cursor position
control + command + ↑ / ↓ : switch between h and m files
command + shift + j : quickly locate the current file in the navigation position
option + command + ← / → : code block display hide
option+command+/: comment
Ctrl+P: move cursor to previous line
Ctrl+N: move cursor to next line
Ctrl + A : move the cursor to the beginning of the line
Ctrl + E : move the cursor to the end of the line
Ctrl + K : delete the line
Find where the method is used (as shown in the figure):
select Callers