28 lines
480 B
Markdown
28 lines
480 B
Markdown
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# ResourceCache::Touch
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```cpp
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void Touch(ResourceGUID guid)
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```
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更新资源的最近访问时间。当缓存条目被命中时调用，用于 LRU 驱逐算法判断资源的访问热度。
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**参数：**
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- `guid` - 资源全局唯一标识符
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**返回：** 无
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**复杂度：** O(1)
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**示例：**
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```cpp
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IResource* res = cache.Find(guid);
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if (res) {
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cache.Touch(guid); // 更新 LRU
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}
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```
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## 相关文档
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- [ResourceCache 总览](resourcecache.md) - 返回类总览
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