FLASH播放问题 - .NET技术 / ASP.NET

本人写了一个类，实现播放FLASH功能
public class Play
{
public Play()
{
//
//TODO: 在此处添加构造函数逻辑
//
}


  public string PlaySwf(string url,int width,int height)
  {
  string strTmp = url.ToLower();

  if (strTmp.EndsWith(".swf"))
  {
  return swf(url, width, height);
  }
  else if (strTmp.EndsWith(".flv"))
  {
  return flv(url, width, height);
  }

  else
  {
  return "FLASH格式错误！";
  }
  }





  public string swf(string url,int width,int height)
  {
  System.Text.StringBuilder sb = new System.Text.StringBuilder();

   
  sb.Append("<OBJECT codeBase=\"http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=6,0,29,0\" ");
   
  sb.Append(" height=\""+height+"\" width=\""+width+"\" >");  
  sb.Append("<PARAM NAME=\"FlashVars\" VALUE=\"\">");  
  sb.Append("<PARAM