52 lines
1.0 KiB
Markdown
52 lines
1.0 KiB
Markdown
|
# FileWriter::Open
|
||
|
|
|
||
|
|
```cpp
|
||
|
|
bool Open(const char* filePath, bool append = false);
|
||
|
|
```
|
||
|
|
|
||
|
|
打开文件。
|
||
|
|
|
||
|
|
**描述**
|
||
|
|
|
||
|
|
打开指定路径的文件，准备写入。如果之前已打开文件，会先关闭。返回是否成功打开文件。
|
||
|
|
|
||
|
|
**参数：**
|
||
|
|
- `filePath` - 要打开的文件路径
|
||
|
|
- `append` - 是否以追加模式打开，默认为覆盖模式
|
||
|
|
|
||
|
|
**返回：** `bool` - 是否成功打开
|
||
|
|
|
||
|
|
**复杂度：** O(1)
|
||
|
|
|
||
|
|
**示例：**
|
||
|
|
|
||
|
|
```cpp
|
||
|
|
#include <XCEngine/Core/FileWriter.h>
|
||
|
|
|
||
|
|
FileWriter writer;
|
||
|
|
|
||
|
|
// 打开文件（覆盖模式）
|
||
|
|
if (writer.Open("output.txt")) {
|
||
|
|
writer.Write("Hello\n");
|
||
|
|
writer.Close();
|
||
|
|
}
|
||
|
|
|
||
|
|
// 打开文件（追加模式）
|
||
|
|
if (writer.Open("log.txt", true)) {
|
||
|
|
writer.Write("Another line\n");
|
||
|
|
writer.Flush();
|
||
|
|
}
|
||
|
|
|
||
|
|
// 检查是否成功
|
||
|
|
FileWriter writer2;
|
||
|
|
if (!writer2.Open("/invalid/path/file.txt")) {
|
||
|
|
printf("Failed to open file\n");
|
||
|
|
}
|
||
|
|
```
|
||
|
|
|
||
|
|
## 相关文档
|
||
|
|
|
||
|
|
- [FileWriter 总览](filewriter.md) - 返回类总览
|
||
|
|
- [Close](Close.md) - 关闭文件
|
||
|
|
- [IsOpen](IsOpen.md) - 检查文件状态
|