在MATLAB中嵌套開關控制流程

Question

可以請你建議！該方案是象下面這樣：我嘗試了多個開關，case語句，但不能做..

switch 1 
case 'YESS' 
{ 
% curly braces are just to denote the scope of case 'YESS' 
.....code  
switch 2 
case 'Yes' 
from here Can I jump again to the start of switch(1),case 'YESS' ?? 
case 'No' 
%% some message 
end 
} 
case'NOO' 
%% some message 
end 

Answer 1

但是你沒有解釋清楚你在找什麼，怎麼樣使用功能如下：

function main 
prompt = 'Do you want more? Y/N [Y]: '; 
str1 = askYesNoQuestion(prompt); 
switch str1 
    case 'Y' 
     prompt2 = 'Asking to make sure? Y/N [Y]: '; 
     str2 = askYesNoQuestion(prompt2); 
     disp(str2); 
    case 'N' 
     disp('OK no problem!'); 
end 
end 


function str = askYesNoQuestion(prompt) 
str = input(prompt,'s'); 
if isempty(str) 
    str = 'Y'; 
end 
switch str 
    case 'Y' 
     disp('you said yes'); 
    case 'N' 
     disp('you said no') 
end 
end 

您可以將整個代碼保存在名爲main.m的m文件中並運行它。

Answer 2

你需要告訴MATLAB不斷循環

keepLooping = true; 
    while keepLooping 
    switch 1 
    case 'YESS' 
    keepLooping = false; %% exit switch 1 

     switch 2 
     case 'Yes' %% back to switch 1 
     keepLooping = true; %% re-enter switch 1 

     case 'No' %% some message 
     keepLooping = false %% exit switch 1 
     end 
    case'NOO' %% some message 
    keepLooping = false; %% exit switch 1 
    end 
    end 

或替代，已經跳「YESS」盒內：

isYesOrNo = 'YESS' 
     keepLooping = true; 
     while keepLooping 
     switch isYesOrNo 
     case 'YESS' 
     keepLooping = false; %% exit switch 1 
      switch 2 
      case 'Yes' %% back to switch 1 
      keepLooping = true; %% re-enter switch 1 
      isYesOrNo = 'YESS' %% re-enter 'YESS' 

      case 'No' %% some message 
      keepLooping = false %% exit switch 1 
      end 
     case'NOO' %% some message 
     keepLooping = false; %% exit switch 1 
     end 
     end