在这种情况下，自然是遵循"Robust Error Handling and Cleanup in ObjectScript "中的模式，使用 try/catch/pseudo-finally 或注册对象来管理析构函数中的清理工作。%Stream.File*也有一个 "RemoveOnClose "属性，您可以对其进行设置，但要小心使用，因为您可能会不小心删除一个重要文件，而且这个标志会在调用%Save()时被重置，因此您需要在重置后将其设回 1。
不过，有一个棘手的情况——假设你需要临时文件在外部堆栈级别中继续存在。例如：
ClassMethod MethodA()
{
Do..MethodB(.filename)
// Do something else with the filename
}
ClassMethod MethodB(Output filename)
{
// Create a temp file and set filename to the file's nameSet filename = ##class(%Library.File).TempFilename()
//... and probably do some other stuff
}
ClassMethod MethodA()
{
Set tempFileManager = ##class(%IPM.Utils.TempFileManager).%Get()
Do..MethodB(.filename)
// Do something else with the filename// The temp file is cleaned up automatically when tempFileManager goes out of scope
}
ClassMethod MethodB(Output filename)
{
Set tempFileManager = ##class(%IPM.Utils.TempFileManager).%Get()
// Create a temp file and set filename to the file's nameSet filename = tempFileManager.GetTempFileName(".md")
//... and probably do some other stuff
}
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