Creates new subitems based on an array and adds them to the collection.

基于数组创建新子项，并将其添加到集合中。

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The second, third, and subsequent columns display the first, second, and subsequent associated subitems.

第二、第三及随后的列显示第一、第二及随后的关联子项。

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You can then add items to the index with several searchable subitems and search the indexed items in various methods.

随后能够为这个索引添加一些可搜索的子条目，并用多种方法来搜索这些索引过的条目。

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