prolog - 在Prolog中加载文件

Question

我正在阅读Prolog教程。它告诉我可以通过键入以下内容来加载其他序言文件：

[filename].

但是每次我尝试这越来越

ERROR: load_files/2: Arguments are not sufficiently instantiated.

该文件与正在使用的文件位于同一目录中。

这是整个查询和错误的副本：

12 ?- [KB5].

ERROR: load_files/2: Arguments are not sufficiently instantiated

我究竟做错了什么？

Answer 1

$ cat junk.pl
test(ok).

$ prolog
Welcome to SWI-Prolog (Multi-threaded, 64 bits, Version 5.8.0)
Copyright (c) 1990-2009 University of Amsterdam.
SWI-Prolog comes with ABSOLUTELY NO WARRANTY. This is free software,
and you are welcome to redistribute it under certain conditions.
Please visit http://www.swi-prolog.org for details.

For help, use ?- help(Topic). or ?- apropos(Word).

?- [junk].
% junk compiled 0.00 sec, 24 bytes
true.

对我来说似乎很好。当然，我使用原子作为文件名，而不是变量。 （KB5是变量名，而不是原子。）首先尝试 ['KB5']看看是否有帮助。接下来尝试 [kb5]看看是否有帮助。最后，尝试一个绝对的最小示例，例如我提供的示例，看看是否可以那样加载。



编辑添加：

$ cp junk.pl JUNK.pl
$ prolog
Welcome to SWI-Prolog (Multi-threaded, 64 bits, Version 5.8.0)
Copyright (c) 1990-2009 University of Amsterdam.
SWI-Prolog comes with ABSOLUTELY NO WARRANTY. This is free software,
and you are welcome to redistribute it under certain conditions.
Please visit http://www.swi-prolog.org for details.

For help, use ?- help(Topic). or ?- apropos(Word).

?- [JUNK].
ERROR: load_files/2: Arguments are not sufficiently instantiated
?- ['JUNK'].
% JUNK compiled 0.00 sec, 1,656 bytes
true.

看起来确实像是原子问题。使用 ['KB5']，您的错误可能会消失。