using?System;
using?System.Data;
using?System.Configuration;
using?System.Collections;
using?System.Web;
using?System.Web.Security;
using?System.Web.UI;
using?System.Web.UI.WebControls;
using?System.Web.UI.WebControls.WebParts;
using?System.Web.UI.HtmlControls;
using?System.Drawing;

public?partial?class?CheckCode?:?System.Web.UI.Page
{
????protected?void?Page_Load（object?sender?EventArgs?e）
????{
????????CreateImage（CreateCode（））;
????}

????///?

????///?生成隨字符串
????///?

????///?
????private?string?CreateCode（）
????{
????????int?number;
????????char?code;
????????string?checkCode?=?string.Empty;
????????System.Random?random?=?new?Random（）;
????????for?（int?i?=?0;?i?????????{
????????????number?=?random.Next（）;
????????????if?（number?%?2?==?0）
????????????????code?=?（char）（‘0‘?+?（char）（number）?%?10）;
????????????else
????????????????code?=?（char）（‘A‘?+?（char）（number）?%?26）;
????????????checkCode?+=?code.ToString（）;

????????}
????????Response.Cookies.Add（new?HttpCookie（“CheckCode“?checkCode））;
????????return?checkCode;
????}

????///?

????///?將字符串轉換成圖片驗證碼
????///?

????private?void?CreateImage（string?checkCode）
????{
????????if?（checkCode?==?null?||?checkCode.Trim（）?==?string.Empty）
????????????return;
????????System.Drawing.Bitmap?image?=?new?System.Drawing.Bitmap（（int）Math.Ceiling（（checkCode.Length?*?12.5））?22）;
????????Graphics?g?=?Graphics.FromImage（image）;
????????try
????????{
????????????//生成隨機生成器
????????????Random?random?=?new?Random（）;
????????????//清空圖片背景
????????????g.Clear（Color.White）;
????????????//畫圖片的背景噪音線
????????????for?（int?i?=?0;?i?????????????{
????????????????int?x1?=?random.Next（image.Width）;
????????????????int?x2?=?random.Next（image.Width）;
????????????????int?y1?=?random.Next（image.Height）;
????????????????int?y2?=?random.Next（image.Height）;
????????????????g.DrawLine（new?Pen（Color.Black）?x1?x2?y1?y2）;
????????????}
????????????Font?font?=?new?System.Drawing.Font（“Arial“?12（System.Drawing.Fontstyle.Bold?|?System.Drawing.Fontstyle.Italic））;
????????????System.Drawing.Drawing2D.LinearGradientBrush?brush?=?new?System.Drawing.Drawing2D.LinearGradientBrush（new?Rectangle（0?0?image.Width?image.Height）?Color.Blue?Color.DarkRed?1.2f?true）;
????????????g.DrawString（checkCode?font?brush?2?2）;
????????????//
????????????//
????????????//畫圖片的邊框
????????????g.DrawRectangle（new?Pen（Color.Silver）?0?0?image.Width?-?1?image.Height?-?1）;
????????????System.IO.MemoryStream?ms?=?new?System.IO.MemoryStream（）;
????????????image.Save（ms?System.Drawing.Imaging.ImageFormat.Gif）;
????????????Response.ClearContent（）;
????????????Response.ContentType?=?“image/Gif“;
????????????Response.BinaryWrite（ms.ToArray（））;
????????}
????????finally
????????{
????????????g.Dispose（）;
????????????image.Dispose（）;
????????}
????}


}

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件????????447??2009-04-03?14:15??workmanage\CheckCode.aspx

?????文件???????3052??2009-04-03?16:04??workmanage\CheckCode.aspx.cs

?????文件???????9839??2009-05-27?10:12??workmanage\go.jpg

?????文件???????3543??2009-06-17?15:26??workmanage\login.aspx

?????文件???????3491??2009-06-13?19:22??workmanage\login.aspx.cs

?????文件??????52442??2009-05-27?10:13??workmanage\login.jpg

????..A.SH.?????19968??2009-06-03?11:29??workmanage\Thumbs.db

?????文件???????1811??2009-06-13?20:49??workmanage\Web.Config

?????文件???????2522??2009-05-29?18:31??workmanage\Teachers\Addstudent.aspx

?????文件???????2383??2009-06-11?09:52??workmanage\Teachers\Addstudent.aspx.cs

?????文件???????3495??2009-05-21?15:41??workmanage\Teachers\Info.aspx

?????文件???????1366??2009-05-21?15:44??workmanage\Teachers\Info.aspx.cs

?????文件???????3465??2009-06-18?10:37??workmanage\Teachers\ManageWork.aspx

?????文件???????6721??2009-06-14?09:40??workmanage\Teachers\ManageWork.aspx.cs

?????文件???????4329??2009-05-29?10:58??workmanage\Teachers\Mark.aspx

?????文件???????7315??2009-06-11?09:53??workmanage\Teachers\Mark.aspx.cs

?????文件???????4645??2009-05-19?15:15??workmanage\Teachers\PublicWork.aspx

?????文件???????5635??2009-06-11?09:58??workmanage\Teachers\PublicWork.aspx.cs

?????文件???????3075??2009-05-21?15:48??workmanage\Teachers\ResetPassword.aspx

?????文件???????1981??2009-06-11?09:58??workmanage\Teachers\ResetPassword.aspx.cs

?????文件???????4115??2009-06-08?20:01??workmanage\Teachers\Review.aspx

?????文件???????7811??2009-06-08?20:01??workmanage\Teachers\Review.aspx.cs

?????文件???????4395??2009-06-09?20:53??workmanage\Teachers\StatResult.aspx

?????文件???????6363??2009-06-09?20:55??workmanage\Teachers\StatResult.aspx.cs

?????文件???????3628??2009-06-14?09:24??workmanage\Teachers\StudentManage.aspx

?????文件???????6218??2009-06-14?09:24??workmanage\Teachers\StudentManage.aspx.cs

?????文件???????4176??2009-06-08?20:34??workmanage\Teachers\StudentSeacher.aspx

?????文件???????3981??2009-06-08?20:37??workmanage\Teachers\StudentSeacher.aspx.cs

?????文件???????1079??2009-06-05?17:06??workmanage\Teachers\teacherMainPage.aspx

?????文件????????425??2009-04-07?15:52??workmanage\Teachers\teacherMainPage.aspx.cs

............此處省略125個文件信息