将文本索引到 Azure AI 搜索中时，分析器会处理文本，以便它可以有效地存储在搜索索引中。 在此 词法分析 过程中， 语言分析器 会删除特定于该语言的非索引字。 非必要词（如“the”或“an”）可以删除，而不会损害内容的词法完整性。
非索引字删除适用于 Azure AI 搜索中使用的所有受支持的 Lucene 和 Azure 分析器 。
本文列出了 Azure 分析器针对每种语言使用的非索引字。
有关 Lucene 分析器的非索引字列表，请参阅 GitHub 上的 Apache Lucene 源代码。
小窍门
若要查看任何给定分析器的输出，请调用 分析文本 REST API。 此 API 通常有助于调试意外的搜索结果。
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