Return back to the menu, button return in menu

Question

0 个投票

Hello,

I have a menu for example"

choice1 = menu('LL,'COLOR,'METHODS')
switch choice1
case 1 
choice2 = menu('Choose a color','Red','Blue','Green')
switch choice 2
case 1 .....
case 2
end
switch choice 3
choice2 = menu('Choose a methods','KMNS','MLR')
case 1....
end
end

My question is, i want more button back, for example

choice1 = menu('LL,'COLOR,'METHODS')
switch choice1
case 1 
choice2 = menu('Choose a color','Red','Blue','Green','back')
switch choice 2
case 1 .....
case 2
end
switch choice 3
choice2 = menu('Choose a methods','KMNS','MLR','back')
case 1....
end
end