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char[] dataBuf;
i = Card.iReadPlantData(50, 0, 24, dataBuf);
textBox2.Text = new string(dataBuf);
StringBuilder dataBuf;
i = Card.iReadPlantData(50, 0, 24, dataBuf);
textBox2.Text = dataBuf.ToString();
[DllImport("pumchric.dll", CharSet = CharSet.Auto)]
public static extern int iReadPlantData(IntPtr handle,int offset,int datalen,char[] dataBuf);
[DllImport("pumchric.dll", CharSet = CharSet.Auto)]
public static extern int iReadPlantData(IntPtr handle,int offset,int datalen,StringBuilder dataBuf);