Menus and submenus

问题

Main menu:

1 Delete
2 Create
3 Modify
4 Remove
X Exit

Submenu 1 (for Delete):

1 Delete file
2 Delete folder
3 Delete another file
4 Delete another folder
5 Back to Main Menu

Submenu 2 (for Create):

1 Create Virtual
2 Create another Virtual
3 Back to Main Menu

Submenu 3 (for Modify):

1 Modify Virtual
2 Modify another Virtual
3 Back to Main Menu

This is the main menu:

$q = Read-Host "
Please select an option:
1 Delete Files 
2 Create New Virtual
3 Modify Existing Virtual
"

Sub-Menu1

$su1 = Read-Host "
Please select an option
1 Delete a file
2 Delete a folder
3 Delete another file
4 Delete another folder
5 Back to main menu
"

How do I take option 5 and bring it back to the main menu?

回答1:

You could create functions for each menu going through a switch so that you could keep calling new menus

function mainMenu(){
    clear
    switch(Read-Host "1 Delete
2 Create
3 Modify
4 Remove
X Exit"){
        X {break}
        2 {createMenu}
        default {"N/A"}
    }
}

function createMenu(){
    clear
    switch(Read-Host "Please select an option `
1 Delete a file
2 Delete a folder
3 Delete another file
4 Delete another folder
5 Back to main menu"){
        5 {mainMenu}
        default {"N/A"}
    }
}

mainMenu

来源：https://stackoverflow.com/questions/46672797/menus-and-submenus