## CacheControlHeaderValue::get_Extensions method


返回 cache-extension 标记的集合。

```cpp
System::SharedPtr<Collections::Generic::ICollection<System::SharedPtr<NameValueHeaderValue>>> System::Net::Http::Headers::CacheControlHeaderValue::get_Extensions()
```


### ReturnValue

缓存扩展标记的集合。

## 另见

* Typedef [SharedPtr](../../../system/sharedptr/)
* Class [ICollection](../../../system.collections.generic/icollection/)
* Class [NameValueHeaderValue](../../namevalueheadervalue/)
* Class [CacheControlHeaderValue](../)
* Namespace [System::Net::Http::Headers](../../)
* Library [Aspose.Page for C++](../../../)