有上传图片的功能，我将图片数据存入数据库中，需要将图片变小后和原图片一块存入数据库中，这样先可显示很多小图，点击后再显示大图！在asp.net中是这么做的：
changimage.aspx中代码：
<%@ Page Language="vb" AutoEventWireup="false" Codebehind="changimage.aspx.vb" Inherits="uploadimage.changimage"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML>
<HEAD>
<title></title>
<meta name="GENERATOR" content="Microsoft Visual Studio.NET 7.0">
<meta name="CODE_LANGUAGE" content="Visual Basic 7.0">
<meta name="vs_defaultClientScript" content="JavaScript">
<meta name="vs_targetSchema" content="http://schemas.microsoft.com/intellisense/ie5">
</HEAD>
<body MS_POSITIONING="GridLayout">
<form >http://www.mikecat.net//trackback.asp?tbID=419
changimage.aspx中代码：
<%@ Page Language="vb" AutoEventWireup="false" Codebehind="changimage.aspx.vb" Inherits="uploadimage.changimage"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML>
<HEAD>
<title></title>
<meta name="GENERATOR" content="Microsoft Visual Studio.NET 7.0">
<meta name="CODE_LANGUAGE" content="Visual Basic 7.0">
<meta name="vs_defaultClientScript" content="JavaScript">
<meta name="vs_targetSchema" content="http://schemas.microsoft.com/intellisense/ie5">
</HEAD>
<body MS_POSITIONING="GridLayout">
<form >http://www.mikecat.net//trackback.asp?tbID=419