通过文件结构直接生成xls文件

以下代码演示了 直接通过excel可以识别的文件结构生成xls文件的方法，这样就可以不引用麻烦的ole了。

using System;
using System.Collections.Generic;
using System.Text;
namespace ConsoleApplication16
{
class Program
{
static void Main(string[] args)
{
//不通过OLE生成excel文件的方法
ExcelWriter excel = new ExcelWriter(@"c:/test.xls");
excel.BeginWrite();
excel.WriteString(0, 0, "Name");
excel.WriteString(0, 1, "Score");
excel.WriteString(1, 0, "jinjazz");
excel.WriteNumber(1, 1, 100);
excel.WriteString(2, 0, "游客");
excel.WriteNumber(2, 1, 0);
excel.EndWrite();
}
}
public class ExcelWriter
{
System.IO.FileStream _wirter;
public ExcelWriter(string strPath)
{
_wirter = new System.IO.FileStream(strPath, System.IO.FileMode.OpenOrCreate);
}
/// <summary>
/// 写入short数组
/// </summary>
/// <param name="values"></param>
private void _writeFile(short[] values)
{
foreach (short v in values)
{
byte[] b = System.BitConverter.GetBytes(v);
_wirter.Write(b, 0, b.Length);
}
}
/// <summary>
/// 写文件头
/// </summary>
public void BeginWrite()
{
_writeFile(new short[] { 0x809, 8, 0, 0x10, 0, 0 });
}
/// <summary>
/// 写文件尾
/// </summary>
public void EndWrite()
{
_writeFile(new short[] { 0xa, 0 });
_wirter.Close();
}
/// <summary>
/// 写一个数字到单元格x,y
/// </summary>
/// <param name="x"></param>
/// <param name="y"></param>
/// <param name="value"></param>
public void WriteNumber(short x, short y, double value)
{
_writeFile(new short[] { 0x203, 14, x, y, 0 });
byte[] b = System.BitConverter.GetBytes(value);
_wirter.Write(b, 0, b.Length);
}
/// <summary>
/// 写一个字符到单元格x,y
/// </summary>
/// <param name="x"></param>
/// <param name="y"></param>
/// <param name="value"></param>
public void WriteString(short x, short y, string value)
{
byte[] b = System.Text.Encoding.Default.GetBytes(value);
_writeFile(new short[] { 0x204, (short)(b.Length + 8), x, y,0, (short)b.Length });
_wirter.Write(b, 0, b.Length);
}
}
}