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716 B
716 B
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");
}
相关文档
- FileWriter 总览 - 返回类总览
- Open - 打开文件