public void Write(Ticker value)
{
//每个记录100字节
Int64 position = WritePosition();
fileStream.Seek(position, SeekOrigin.Begin);
binaryWriter.Write(UnixTime.ToInt32(value.Time));
binaryWriter.Write(value.High);
binaryWriter.Write(value.Low);
binaryWriter.Write(value.Buy);
binaryWriter.Write(value.Sell);
binaryWriter.Write(value.Last);
binaryWriter.Write(value.Volume);
//如果数据长度达到指定的文件长度，则返回开始位置循环写入
binaryWriter.Flush();
if (fileStream.Position >= fileSize)
{
fileStream.Seek(REC_SIZE, SeekOrigin.Begin);
}
}
