Question

我正在Inform7中实现一个没有任何扩展名的手机。

Calling is an action applying to one topic.
Understand "Call [text]" or "[text] call" as calling.
Carry out Calling:
    if the topic understood matches "Melissa":
        say "You are calling Melissa … 'are you fine?'";
        if player consents:
            say "good???";
        otherwise:
            say "I see!";
    if the topic understood matches "Dad":
         say "Hey boy";
    otherwise:
        say "beeeeep – [the topic understood] is not answering";

所以，如果我给爸爸打电话，程序就行了。但如果我打电话给Melissa，她正在回答这个问题，当玩家同意时，整个程序都会失败：

>call melissa
You are calling Melissa … 'are you fine?'
yes
good???
beeeep -  
*** Run-time problem P39: Attempt to say a snippet value which is currently invalid: words 2 to 2.

  is not answering
>

Answer 1

当你有这种结构时

if A
   ...
if B
   ...
otherwise
   ...

然后，otherwise块将在B未匹配的任何情况下执行。

另一方面，如果你有

if A
   ...
otherwise if B
   ...
otherwise
   ...

如果otherwise和A都不匹配，则会执行B块。

所以在你的情况下，你的

if the topic understood matches "Dad":

应该是

otherwise if the topic understood matches "Dad":

Inform7中的嵌套If-Conditions

1 个答案: