# Shader::GetGUID

```cpp
ResourceGUID GetGUID() const override
```

获取着色器资源的全局唯一标识符。

**返回：** `ResourceGUID` - 全局唯一标识符

**线程安全：** ✅ 线程安全

**复杂度：** O(1)

**示例：**

```cpp
ResourceHandle<Shader> shader = ResourceManager::Get().Load<Shader>("shaders/vertex.glsl");
ResourceGUID guid = shader->GetGUID();
```

## 相关文档

- [Shader 总览](shader.md) - 返回类总览
- [IResource](../iresource/iresource.md) - 资源基类