asp+ 制作图形
类别: ASP.NET教程 
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*/
这个程序经过修改 现在作计数器的话 只能做黑白的 计数器，谁有办法 能够做出 复杂的 图形计数器？
<% @Page Language=\"C#\" %>
<% @Import Namespace=\"System.Drawing\" %>
<% @Import Namespace=\"System.IO\" %>
<% @Import Namespace=\"System.Drawing.Imaging\" %>
<%
Response.Expires = 0;
Bitmap newBitmap = null;
Graphics g = null ;
string str2Render = Request.QueryString.Get(\"HitCount\");
if (null == str2Render) str2Render = \"12345\";
string strFont = Request.QueryString.Get(\"HitFontName\");
if (null == strFont) strFont = \"楷体_GB2312\";
int nFontSize = 12;
try
{
nFontSize = Request.QueryString.Get(\"HitFontSize\").ToInt32();
}
catch
{
// do nothing, just ignore
}
string strBackgroundColorname = Request.QueryString.Get(\"HitBackgroundColor\");
Color clrBackground = Color.White;
try
{
if (null != strBackgroundColorname)
clrBackground = ColorTranslator.FromHTML(strBackgroundColorname);
}
catch
{
}
string strFontColorName = Request.QueryString.Get(\"HitFontColor\");
Color clrFont = Color.Black;
try
{
// Format in the URL: %23xxXXxx
if (null != strFontColorName)
clrFont = ColorTranslator.FromHTML(strFontColorName);
}
catch
{
}
try
{
Font fontCounter = new Font(strFont, nFontSize);
newBitmap = new Bitmap(1,1,PixelFormat.Format32bppARGB);
g = Graphics.FromImage(newBitmap);
SizeF stringSize = g.MeasureString(str2Render, fontCounter);
int nWidth = (int)stringSize.Width;
int nHeight = (int)stringSize.Height;
g.Dispose();
newBitmap.Dispose();
newBitmap = new Bitmap(nWidth,nHeight,PixelFormat.Format32bppARGB);
g = Graphics.FromImage(newBitmap);
g.FillRectangle(new SolidBrush(clrBackground), new Rectangle(0,0,nWidth,nHeight));
g.DrawString(str2Render, fontCounter, new SolidBrush(clrFont), 0, 0);
MemoryStream tempStream = new MemoryStream();
newBitmap.Save(tempStream,ImageFormat.GIF);
Response.ClearContent();
Response.ContentType = \"image/GIF\";
Response.BinaryWrite(tempStream.ToArray());
Response.End();
}
catch (Exception e)
{
Response.Write(e.ToString());
}
finally
{
if (null != g) g.Dispose();
if (null != newBitmap) newBitmap.Dispose();
}
%>
作者:豆腐
