While loop with if function

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Ken L
Ken L 2021-1-30
评论： Ken L 2021-2-2
Hi, need some help on whie loop and if function.
E.g,
Amount =$1-500
type = a or b
How should I write in mathlab, if I wan if the amount between 1-500 and if the type is "a" then show the 'a" result else showing "b" result. And after that will ask whether user want to continue the process or not.

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采纳的回答

Walter Roberson
Walter Roberson 2021-1-30
if 1 <= amount & amount <= 500 & strcmp(type, 'a')
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Walter Roberson
Walter Roberson 2021-2-1
while true
name = input("Enter name:","s");
address = input("Enter address:","s");
purchase_amount = input("Enter amount of purchase:");
purchase_type = input("Enter type of purchase (L for type L/ D for type D):","s");
fail = false;
if strcmpi(purchase_type, "D") && purchase_amount >= 0 && purchase_amount <= 250
discount = 0.95;
net_amount = purchase_amount*discount;
elseif strcmpi(purchase_type, "D") && purchase_amount >= 251 && purchase_amount <= 570
discount = 0.924;
net_amount = purchase_amount*discount;
elseif strcmpi(purchase_type, "D") || strcmpi(purchase_type, "L")&& purchase_amount >= 0 && purchase_amount <= 250
discount = 1;
net_amount = purchase_amount*discount;
elseif strcmpi(purchase_type, "D") || strcmpi(purchase_type, "L")&& purchase_amount >= 251 && purchase_amount <= 570
discount = 0.95;
net_amount = purchase_amount*discount;
else
fprintf ("Invalid type.\n")
fail = true;
end
if ~fail
fprintf("Name: %s\n",name);
fprintf("Address: %s\n",address);
fprintf("Net Amount: $%d\n",net_amount);
end
prompt = input("Do you wish to continue to purchase (Y for Yes/ N for No):","s");
if ~strcmpi(prompt, 'Y')
break;
end
end
fprintf("Goodbye.\n");
Ken L
Ken L 2021-2-2
Hi Walter, thank you very much, the code worked perfectly, really appreciate your help.

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