docs: 重构 API 文档结构并修正源码准确性
- 重组文档目录结构: 每个模块的概述页移动到模块子目录 - 重命名 index.md 为 main.md - 修正所有模块文档中的错误: - math: FromEuler→FromEulerAngles, TransformDirection 包含缩放, Box 是 OBB, Color::ToRGBA 格式 - containers: 新增 operator==/!= 文档, 补充 std::hash DJB 算法细节 - core: 修复 types 链接错误 - debug: LogLevelToString 返回大写, timestamp 是秒, Profiler 空实现标注, Windows API vs ANSI - memory: 修复头文件路径, malloc vs operator new, 新增方法文档 - resources: 修复 Shader/Texture 链接错误 - threading: TaskSystem::Wait 空实现标注, ReadWriteLock 重入描述, LambdaTask 链接 - 验证: fix_links.py 确认 0 个断裂引用
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docs/api/core/filewriter/IsOpen.md
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# FileWriter::IsOpen
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```cpp
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bool IsOpen() const;
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```
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检查文件是否已打开。
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**描述**
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返回文件是否已成功打开并可用于写入。
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**返回:** `bool` - 文件是否已打开
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**复杂度:** O(1)
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**示例:**
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```cpp
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#include <XCEngine/Core/FileWriter.h>
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FileWriter writer1;
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if (writer1.IsOpen()) {
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// 不会执行
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writer1.Write("test");
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}
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// 打开文件
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FileWriter writer2("output.txt");
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if (writer2.IsOpen()) {
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printf("File opened successfully\n");
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writer2.Write("Content");
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} else {
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printf("Failed to open file\n");
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}
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```
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## 相关文档
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- [FileWriter 总览](filewriter.md) - 返回类总览
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- [Open](Open.md) - 打开文件
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