Line 37: 		filename1 = Image1.Src;
Line 38: 		System.Drawing.Image image = System.Drawing.Image.FromFile(Server.MapPath(filename1));
Line 39: 		System.Drawing.Image newimage = new Bitmap(image.Width, image.Height, PixelFormat.Format32bppRGB);
Line 40: 		Graphics g = Graphics.FromImage(newimage);
Line 41: 		g.DrawImage(image, 0, 0, image.Width, image.Height);

Source File: c:\Documents and Settings\fanb\My Documents\Visual Studio 2005\WebSites\WebSite3\upfileword.aspx.cs Line: 39

程序:
using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
using System.Net;
using System.IO;
using System.Threading;

namespace MyGetCar
{
///
/// Form1 的摘要说明。
///
public class Form1 : System.Windows.Forms.Form
{
private System.Windows.Forms.Label label1;
private System.Windows.Forms.Label label2;
private System.Windows.Forms.TextBox srcAddress;
private System.Windows.Forms.TextBox tarAddress;
private System.Windows.Forms.StatusBar statusBar;
private System.Windows.Forms.Button Start;

private WebClient client = new WebClient();

///
/// 必需的设计器变量。
///
private System.ComponentModel.Container components = null;

public Form1()
{
//
// Windows 窗体设计器支持所必需的
//
InitializeComponent();

//
// TODO: 在 InitializeComponent 调用后添加任何构造函数代码
//
}

///
/// 清理所有正在使用的资源。
///
protected override void Dispose(bool disposing)
{
if (disposing)
{
if (components != null)
{
components.Dispose();
}
}
base.Dispose(disposing);
}

#region Windows Form Designer generated code
///
/// 设计器支持所需的方法 - 不要使用代码编辑器修改
/// 此方法的内容。
///
private void InitializeComponent()
{
this.label1 = new System.Windows.Forms.Label();
this.label2 = new System.Windows.Forms.Label();
this.srcAddress = new System.Windows.Forms.TextBox();
this.tarAddress = new System.Windows.Forms.TextBox();
this.statusBar = new System.Windows.Forms.StatusBar();
this.Start = new System.Windows.Forms.Button();
this.button1 = new System.Windows.Forms.Button();
this.SuspendLayout();
//
// label1
//
this.label1.Location = new System.Drawing.Point(8, 32);
this.label1.Name = "label1";
this.label1.Size = new System.Drawing.Size(72, 23);
this.label1.TabIndex = 0;
this.label1.Text = "文件地址：";
this.label1.TextAlign = System.Drawing.ContentAlignment.MiddleRight;
//
// label2
//
this.label2.Location = new System.Drawing.Point(8, 72);
this.label2.Name = "label2";
this.label2.Size = new System.Drawing.Size(72, 23);
this.label2.TabIndex = 1;
this.label2.Text = "另存到：";
this.label2.TextAlign = System.Drawing.ContentAlignment.MiddleRight;
//
// srcAddress
//
this.srcAddress.Location = new System.Drawing.Point(80, 32);
this.srcAddress.Name = "srcAddress";
this.srcAddress.Size = new System.Drawing.Size(216, 21);
this.srcAddress.TabIndex = 2;
this.srcAddress.Text = "";
//
// tarAddress
//
this.tarAddress.Location = new System.Drawing.Point(80, 72);
this.tarAddress.Name = "tarAddress";
this.tarAddress.Size = new System.Drawing.Size(216, 21);
this.tarAddress.TabIndex = 3;
this.tarAddress.Text = "";
//
// statusBar
//
this.statusBar.Location = new System.Drawing.Point(0, 151);
this.statusBar.Name = "statusBar";
this.statusBar.Size = new System.Drawing.Size(312, 22);
this.statusBar.TabIndex = 4;
//
// Start
//
this.Start.FlatStyle = System.Windows.Forms.FlatStyle.Flat;
this.Start.Location = new System.Drawing.Point(216, 112);
this.Start.Name = "Start";
this.Start.Size = new System.Drawing.Size(75, 24);
this.Start.TabIndex = 5;
this.Start.Text = "开始下载";
this.Start.Click += new System.EventHandler(this.Start_Click);

//
// Form1
//
this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);
this.ClientSize = new System.Drawing.Size(312, 173);
this.Controls.Add(this.button1);
this.Controls.Add(this.Start);
this.Controls.Add(this.statusBar);
this.Controls.Add(this.tarAddress);
this.Controls.Add(this.srcAddress);
this.Controls.Add(this.label2);
this.Controls.Add(this.label1);
this.MaximizeBox = false;
this.Name = "Form1";
this.Text = "文件下载器";
this.ResumeLayout(false);
}
#endregion

///
/// 应用程序的主入口点。
///
[STAThread]
static void Main()
{
Application.Run(new Form1());
}

private void StartDownload()
{
Start.Enabled = false;
string URL = srcAddress.Text;
int n = URL.LastIndexOf("?");
string URLAddress = URL;
//string URLAddress = URL.Substring(0,n);
string fileName = URL.Substring(n + 1, URL.Length - n - 1);
string Dir = tarAddress.Text;
string Path = Dir + fileName;

try
{
WebRequest myre = WebRequest.Create(URLAddress);
}
catch (WebException exp)
{
MessageBox.Show(exp.Message, "Error");
}

try
{
statusBar.Text = "开始下载文件...";
client.DownloadFile(URLAddress, fileName);
Stream str = client.OpenRead(URLAddress);
//StreamReader reader = new StreamReader(str); ,这句没有什么必要！个人认为
byte[] mbyte = new byte[100000];
int allmybyte = (int)mbyte.Length;
int startmbyte = 0;
statusBar.Text = "正在接收数据...";
//写入到BYTE数组中，起缓冲作用
while (allmybyte > 0)
{
int m = str.Read(mbyte, startmbyte, allmybyte);
if (m == 0)
break;

startmbyte += m;
allmybyte -= m;
}

FileStream fstr = new FileStream(Path, FileMode.OpenOrCreate, FileAccess.Write);
fstr.Write(mbyte, 0, startmbyte);
str.Close();
fstr.Close();

statusBar.Text = "下载完毕！";
}
catch (WebException exp)
{
MessageBox.Show(exp.Message, "Error");
statusBar.Text = "";
}

Start.Enabled = true;
}

private void Start_Click(object sender, System.EventArgs e)
{
Thread th = new Thread(new ThreadStart(StartDownload));
th.Start();
}
}
}