docs: update resources API docs
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docs/api/resources/resourcepath/hasextension.md
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docs/api/resources/resourcepath/hasextension.md
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# ResourcePath::HasExtension
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```cpp
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bool HasExtension(const char* ext) const
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```
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检查是否具有指定扩展名。
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**详细描述:**
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比较路径的扩展名与指定的扩展名。扩展名应包含前缀点(`.`)。
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**参数:**
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- `ext` - 要检查的扩展名(应包含 `.`,如 `".png"`)
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**返回:** `bool`,扩展名匹配返回 `true`,否则返回 `false`
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**复杂度:** O(n),n 为路径长度
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**示例:**
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```cpp
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ResourcePath path("textures/player.png");
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bool isPng = path.HasExtension(".png"); // true
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bool isJpg = path.HasExtension(".jpg"); // false
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bool isInvalid = path.HasExtension("png"); // false (缺少前缀点)
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```
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## 相关文档
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- [ResourcePath 总览](resourcepath.md) - 返回类总览
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- [HasAnyExtension](hasanyextension.md) - 检查多个扩展名
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