摄影教学ppt:delphi报错，不知是何错误？
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arXlsBegin : array[0..5] of Word = ($809, 8, 0, $10, 0, 0);
FFileStream.WriteBuffer(arXlsBegin, SizeOf(arXlsBegin));
报错信息：
there is no overloaded version of 'WriterBuffer' that can be called with these arguments
这是什么意思啊？
FFileStream: TFileStream;
FFileStream := TFileStream.Create(FileName, fmCreate);
FFileStream.WriteBuffer(arXlsBegin, SizeOf(arXlsBegin));
报错信息：
there is no overloaded version of 'WriterBuffer' that can be called with these arguments
这是什么意思啊？
FFileStream: TFileStream;
FFileStream := TFileStream.Create(FileName, fmCreate);
FFileStream是咋定义的啊？TStream?TFileStream？TMemoryStream？