Author: love.net
Everyone knows that the K-line map of the stock website is the dynamically generated timing refresh PHP has the function of dynamically generating pictures.
So how do you use ASP.NET to generate a picture in the web page?
Below I want an example is a dynamic generation of a picture showing the current time
Namespace WMJ
{
Using system;
Using system.drawing;
Using system.Web.ui;
Public class mytempimage: Page
{
Public String CreateImage ()
{
String str = datetime.now.tostring ();
Bitmap Image = New Bitmap (200, 30);
Graphics g = graphics.fromImage (image);
String thefullname = server.mappath ("/") "// NOWTIME.GIF";
g.clear (color.white);
G. DrawString (STR, New Font ("Courier New", 10), New Solidbrush (Color.Red), 20, 5);
// Graphics class also has a lot of drawing methods to draw straight lines, curves, circles, etc.
Image.save (TheFullName, System.drawing.Imaging.imageformat.gif);
Return "/nowtime.gif";
}
}
}
///
<% @ Page language = "c #"%>
<% @ Import namespace = "wmj"%>
