> For the complete documentation index, see [llms.txt](https://docs.mongoing.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.mongoing.com/can-kao/yun-suan-fu/query-and-projection-operators/array-query-operators.md).

# 数组查询运算符

> **注意**
>
> 有关特定运算符的详细信息，包括语法和示例，请单击特定运算符以转到其参考页。

| 名称                                                                                           | 描述                                       |
| -------------------------------------------------------------------------------------------- | ---------------------------------------- |
| [`$all`](/can-kao/yun-suan-fu/query-and-projection-operators/array-query-operators.md)       | 匹配包含查询中指定的所有元素的数组。                       |
| [`$elemMatch`](/can-kao/yun-suan-fu/query-and-projection-operators/array-query-operators.md) | 如果array字段中的元素符合所有指定`$elemMatch`条件，则选择文档。 |
| [`$size`](/can-kao/yun-suan-fu/query-and-projection-operators/array-query-operators.md)      | 如果数组字段为指定大小，则选择文档。                       |

有关查询数组字段的示例，请参见：

* 查询数组
* 查询嵌入式文档数组

译者：李冠飞

校对：


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