AIML 模式匹配 - 如何？
我在尝试了解 AIML 模式匹配的工作原理时遇到问题。 _ 和 * 有什么区别？我应该如何使用它们来获得最佳匹配？
我只有此文档，但缺少一些很好的示例。
I'm having a problem trying to understand how does AIML pattern matching works.
What's the difference between _ and *? And how I should use them to get the best match?
I have this document only, but it lacks some good examples.
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A * 将匹配任何内容，除非一个单词或多个单词的模式匹配
即使一个单词或多个单词的模式可以匹配
BYE _ BYE * BYE _ BYE * 再见 小心使用 _，例如 _ 会匹配任何内容，并且您的机器人每次都会给出相同的答案。
_ A COUPLE OF WORDS * _ A COUPLE OF WORDS A * will match anything unless a pattern of a word or several words are matched
A _ will match anything even if a pattern of a word or several words could match
<pattern>BYE _</pattern>does not make sense since<pattern>BYE *</pattern>matches the same patterns but<pattern>BYE _</pattern>will shadow<pattern>BYE * SEE YOU</pattern>whereas BYE * won't.Use _ carefully, for example _ would match anything and your bot will give the same answer every times.
<pattern>_ A COUPLE OF WORDS *</pattern>and<pattern>_ A COUPLE OF WORDS</pattern>is the proper way to use _ if you want to catch every times A COUPLE OF WORDS is inside or at the end of a sentence._ 和 * 都是通配符，区别在于它们在模式匹配中应该使用的位置。
请参阅：AIML 规范
为了更好地理解这一点，可能值得查看示例在现有的 AIML 机器人中。
请参阅：下载，这个 Saluations.aiml 有示例
_ and * are both wildcards, the difference is where they should be used in pattern matching.
See: AIML spec
To understand this better it may be worth looking at examples in the existing AIML bots.
See: Downloads, this one Saluations.aiml has examples