docs: update resources API docs

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2026-03-20 02:35:35 +08:00
parent fd792b7df1
commit ea756c0177
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# ResourcePath::GetExtension
```cpp
Containers::String GetExtension() const
```
获取文件扩展名。
**详细描述:**
返回路径字符串的文件扩展名部分,包括前缀点(`.`)。如果路径为空或不包含扩展名,返回空字符串。
**返回:** `Containers::String`,包含扩展名(如 `".png"`),如果无扩展名则返回空字符串
**复杂度:** O(n)n 为路径长度
**示例:**
```cpp
ResourcePath path("textures/player.png");
Containers::String ext = path.GetExtension(); // ".png"
ResourcePath path2("textures/player");
Containers::String ext2 = path2.GetExtension(); // ""
ResourcePath path3("");
Containers::String ext3 = path3.GetExtension(); // ""
```
## 相关文档
- [ResourcePath 总览](resourcepath.md) - 返回类总览