> ## Documentation Index
> Fetch the complete documentation index at: https://devdocs.xbox.com/llms.txt
> Use this file to discover all available pages before exploring further.

# PFEntityKey C API

> PlayFab C SDK 中的 PFEntityKey 数据模型：组合的实体类型和 ID 结构，可在 API 调用中唯一标识单个 PlayFab 实体。

PFEntityKey 数据模型。组合的实体类型和 ID 结构，唯一标识单个实体。

## 语法

```cpp theme={null}
typedef struct PFEntityKey {  
    const char* id;  
    const char* type;  
} PFEntityKey;  
```

### 成员

**`id`**   const char\*<br />*is null-terminated*

实体的唯一 ID。

**`type`**   const char\*<br />*is null-terminated*

（可选）实体类型。请参阅 [/playfab/live-service-management/game-configuration/entities/available-built-in-entity-types。](/services/playfab/live-service-management/game-configuration/entities/available-built-in-entity-types)

## 要求

**头文件：** PFTypes.h

## 另请参阅

[PFTypes 成员](/services/playfab/api-references/c/pftypes/pftypes_members)


## Related topics

- [PFEntityKey](/zh-CN/services/playfab/multiplayer/lobby/unity-multiplayer-api-reference/PlayFab.Multiplayer/PFEntityKey/PFEntityKey.md)
- [PFEntityKey.Id](/zh-CN/services/playfab/multiplayer/lobby/unity-multiplayer-api-reference/PlayFab.Multiplayer/PFEntityKey/Id.md)
- [PFEntityKey.Type](/zh-CN/services/playfab/multiplayer/lobby/unity-multiplayer-api-reference/PlayFab.Multiplayer/PFEntityKey/Type.md)
- [PFEntityKey class](/zh-CN/services/playfab/multiplayer/lobby/unity-multiplayer-api-reference/PlayFab.Multiplayer/PFEntityKey/overview.md)
- [PFEntityKey - PlayFab 多人游戏 SDK](/zh-CN/services/playfab/multiplayer/lobby/playfabmultiplayerreference-cpp/pfmultiplayer/pfentitykey_clientsdk.md)