如何从函数返回主菜单？

Question

我有一个问题从功能回到主菜单。我的BASH脚本看起来像这样

 function functionA(){

    while [ "$choice" != x ]; do 
       echo "Press a to take action, and press b to exit and go back to the main list" 
       read choice 
       case $choice in 
          a)
             echo "Now lets do some stuff" 
             read 
             ... 
             ..... 
             ;; 
        x) 
           exit
       esac 
    done 
 }


 while [ "$choice" != x ];do 
     echo "Main list" 
     echo "Press a to go to functionA, press b to go to functionB, and press x to exit the program" 
     read choice

    case $choice in  
        a) functionA 
           ;; 
        b) functionB 
           ;;
       c) exit

    esac 
 done

所以基本上，如果用户在functionA()并按x退出，我希望他回到主列表，然后他就可以去{{1} }再次或functionA()，或者再次按functionB()退出整个程序。

Answer 1

当您在x中输入function()时，您正在exit中调用functionA()，这会使整个脚本退出。而只是return。