写一个excel文件

//这是SmartExcelStructure.cs的代码
using System;
using System.Runtime.InteropServices;

namespace Genersoft.Platform.Application
{
/// <summary>
/// 读写EXCEL文件所需的所有结构体的定义
/// </summary>
///

[StructLayoutAttribute(LayoutKind.Sequential, CharSet=CharSet.Auto, Pack=1)]
struct FONT_RECORD
{
public short opcode;//49
public short length;//5+len(fontname)
public short FontHeight;
[MarshalAs(UnmanagedType.I1, SizeConst=1)]public byte FontAttributes1;//bit0 bold, bit1 italic, bit2 underline, bit3 strikeout, bit4-7 reserved
[MarshalAs(UnmanagedType.I1, SizeConst=1)]public byte FontAttributes2;//reserved - always 0
[MarshalAs(UnmanagedType.I1, SizeConst=1)]public byte FontNameLength;
}

[StructLayoutAttribute(LayoutKind.Sequential, CharSet=CharSet.Auto, Pack=1)]
struct PASSWORD_RECORD
{
public short opcode;//47
public short length;//len(password)
}

[StructLayoutAttribute(LayoutKind.Sequential, CharSet=CharSet.Auto, Pack=1)]
struct HEADER_FOOTER_RECORD
{
public short opcode;//20 Header, 21 Footer
public short length;//1+len(text)
[MarshalAs(UnmanagedType.I1, SizeConst=1)]public byte TextLength;
}

[StructLayoutAttribute(LayoutKind.Sequential, CharSet=CharSet.Auto, Pack=1)]
struct PROTECT_SPREADSHEET_RECORD
{
public short opcode;//18
public short length;//2
public short Protect;
}

[StructLayoutAttribute(LayoutKind.Sequential, CharSet=CharSet.Auto, Pack=1)]
struct FORMAT_COUNT_RECORD
{
public short opcode;//0x1f
public short length;//2
public short Count;
}

[StructLayoutAttribute(LayoutKind.Sequential, CharSet=CharSet.Auto, Pack=1)]
struct FORMAT_RECORD
{
public short opcode;// 0x1e
public short length;//1+len(format)
[MarshalAs(UnmanagedType.U1, SizeConst=1)]public byte FormatLength;//len(format)
}//followed by the Format-Picture

[StructLayoutAttribute(LayoutKind.Sequential, CharSet=CharSet.Auto, Pack=1)]
struct COLWIDTH_RECORD
{
public short opcode;//36
public short length;//4
[MarshalAs(UnmanagedType.I1, SizeConst=1)]public byte col1;//first column
[MarshalAs(UnmanagedType.I1, SizeConst=1)]public byte col2;//last column
public short ColumnWidth;//at 1/256th of a character
}

// 'Beginning Of File record
[StructLayoutAttribute(LayoutKind.Sequential, CharSet=CharSet.Auto, Pack=1)]
struct BEG_FILE_RECORD
{
public short opcode;
public short length;
public short version;
public short ftype;
}

// 'End Of File record
[StructLayoutAttribute(LayoutKind.Sequential, CharSet=CharSet.Auto, Pack=1)]
struct END_FILE_RECORD
{
public short opcode;
public short length;
}

// 'true/false to print gridlines
[StructLayoutAttribute(LayoutKind.Sequential, CharSet=CharSet.Auto, Pack=1)]
struct PRINT_GRIDLINES_RECORD
{
public short opcode;
public short length;
public short PrintFlag;
}

// 'Integer record
[StructLayoutAttribute(LayoutKind.Sequential, CharSet=CharSet.Auto, Pack=1)]
struct tInteger
{
public short opcode;
public short length;
public short row;//unsigned integer
public short col;
[MarshalAs(UnmanagedType.I1, SizeConst=1)]public byte rgbAttr1;//rgbAttr1 handles whether cell is hidden and/or locked
[MarshalAs(UnmanagedType.I1, SizeConst=1)]public byte rgbAttr2;//rgbAttr2 handles the Font# and Formatting assigned to this cell
[MarshalAs(UnmanagedType.I1, SizeConst=1)]public byte rgbAttr3;//rgbAttr3 handles the Cell Alignment/borders/shading
public short intValue;//the actual integer value
}

// 'Number record
[StructLayoutAttribute(LayoutKind.Sequential, CharSet=CharSet.Auto, Pack=1)]
struct tNumber
{
public short opcode;
public short length;
public short row;
public short col;
[MarshalAs(UnmanagedType.I1, SizeConst=1)]public byte rgbAttr1;
[MarshalAs(UnmanagedType.I1, SizeConst=1)]public byte rgbAttr2;
[MarshalAs(UnmanagedType.I1, SizeConst=1)]public byte rgbAttr3;
public double NumberValue;//8 Bytes
}
//
// 'Label (Text) record
[StructLayoutAttribute(LayoutKind.Sequential, CharSet=CharSet.Auto, Pack=1)]
struct tText
{
public short opcode;
public short length;
public short row;
public short col;
[MarshalAs(UnmanagedType.I1, SizeConst=1)]public byte rgbAttr1;
[MarshalAs(UnmanagedType.I1, SizeConst=1)]public byte rgbAttr2;
[MarshalAs(UnmanagedType.I1, SizeConst=1)]public byte rgbAttr3;
[MarshalAs(UnmanagedType.I1, SizeConst=1)]public byte TextLength;
}
//
[StructLayoutAttribute(LayoutKind.Sequential, CharSet=CharSet.Auto, Pack=1)]
struct MARGIN_RECORD_LAYOUT
{
public short opcode;
public short length;
public double MarginValue;//8 bytes
}
//
[StructLayoutAttribute(LayoutKind.Sequential, CharSet=CharSet.Auto, Pack=1)]
struct HPAGE_BREAK_RECORD
{
public short opcode;
public short length;
public short NumPageBreaks;
}
//
[StructLayoutAttribute(LayoutKind.Sequential, CharSet=CharSet.Auto, Pack=1)]
struct DEF_ROWHEIGHT_RECORD
{
public int opcode;
public int length;
public int RowHeight;
}
//
[StructLayoutAttribute(LayoutKind.Sequential, CharSet=CharSet.Auto, Pack=1)]
struct ROW_HEIGHT_RECORD
{
public int opcode;//08
public int length;//should always be 16 bytes
public int RowNumber;
public int FirstColumn;
public int LastColumn;
public int RowHeight;//written to file as 1/20ths of a point
public int internals;
[MarshalAs(UnmanagedType.I1, SizeConst=1)]public byte DefaultAttributes;//set to zero for no default attributes
public int FileOffset;
[MarshalAs(UnmanagedType.I1, SizeConst=1)]public byte rgbAttr1;
[MarshalAs(UnmanagedType.I1, SizeConst=1)]public byte rgbAttr2;
[MarshalAs(UnmanagedType.I1, SizeConst=1)]public byte rgbAttr3;
}

}