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ssdfasd de4086dbfe docs: Fix core module documentation discrepancies

Fixed the following issues in XCEngine Core module documentation:
- Added 'using namespace XCEngine::Core;' to all code examples that use
  Core types (Event, FileWriter, etc.) without full namespace qualification
- Added missing '#include <XCEngine/Containers/String.h>' to FileWriter
  examples that use Containers::String
- Added '#include <string>' to Flush.md example using std::to_string

Affected files:
- core/core.md: Added using directive and Containers include
- event/*.md: Added using namespace to all 8 event doc files
- filewriter/*.md: Added using namespace and proper includes to all 6 files

2026-03-19 01:04:30 +08:00

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FileWriter::IsOpen

bool IsOpen() const;

检查文件是否已打开。

描述

返回文件是否已成功打开并可用于写入。

返回： bool - 文件是否已打开

复杂度： O(1)

示例：

#include <XCEngine/Core/FileWriter.h>

using namespace XCEngine::Core;

FileWriter writer1;
if (writer1.IsOpen()) {
    // 不会执行
    writer1.Write("test");
}

// 打开文件
FileWriter writer2("output.txt");
if (writer2.IsOpen()) {
    printf("File opened successfully\n");
    writer2.Write("Content");
} else {
    printf("Failed to open file\n");
}

716 B Raw Blame History

FileWriter::IsOpen

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