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;
//該源碼下載自www.51aspx.com（５１ａspｘ．ｃｏｍ）

public?partial?class?checkcode?:?System.Web.UI.Page
{
????protected?void?Page_Load（object?sender?EventArgs?e）
????{
????????CreateCheckCodeImage（GenerateCheckCode（））;
????}
????private?string?GenerateCheckCode（）//生成數(shù)字及大小寫字母的驗(yàn)證碼
????{
????????int?number;
????????char?code;
????????string?checkCode?=?String.Empty;
????????System.Random?random?=?new?Random（）;
????????for?（int?i?=?0;?i?????????{
????????????number?=?random.Next（）;//返回一個(gè)小于制定最大數(shù)的非負(fù)隨機(jī)數(shù)
????????????if?（number%2==0）
????????????{
????????????????if?（number?%?4?==?0）
????????????????????code?=?（char）（‘0‘?+?（char）（number?%?10））;
????????????????else
????????????????????code?=?（char）（‘A‘?+?（char）（number?%?26））;
????????????}
????????????else
????????????{
????????????????if?（number?%?4?==?0）
????????????????????code?=?（char）（‘0‘?+?（char）（number?%?10））;
????????????????else
????????????????????code?=?（char）（‘a(chǎn)‘?+?（char）（number?%?26））;
????????????
????????????}
????????????checkCode?+=?code.ToString（）;
????????}
????????Response.Cookies.Add（new?HttpCookie（“CheckCode“checkCode））;
????????return?checkCode;
????}
????private?void?CreateCheckCodeImage（string?checkCode）//畫(huà)圖像及線條
????{
????????if?（checkCode?==?null?||?checkCode.Trim（）?==?String.Empty）//如果傳入的參數(shù)為空
????????????return;//則返回
????????System.Drawing.Bitmap?image?=?new?Bitmap（（int）Math.Ceiling（（checkCode.Length?*?14.5））?22）;//Bitmap（長(zhǎng)度高度）
????????Graphics?g?=?Graphics.FromImage（image）;//得到長(zhǎng)度及高度的值
????????try
????????{
????????????Random?random?=?new?Random（）;?//生成隨機(jī)生成器
????????????g.Clear（Color.White）;??//清空?qǐng)D片背景色
????????????//畫(huà)圖片的背景噪音線
????????????for（int?i=0;i<4;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?y1?x2?y2）;//DrawLine顏色
????????????}
????????????Font?font?=?new?Font（“Arial“?12?（System.Drawing.Fontstyle.Bold?|?System.Drawing.Fontstyle.Italic））;
????????????System.Drawing.Drawing2D.LinearGradientBrush?brush?=?new?System.Drawing.Drawing2D.LinearGradientBrush（new?Rectangle（0?0image.Width?image.Height）?Color.Blue?Color.DarkRed?1.2f?true）;
????????????g.DrawString（checkCode?font?brush?2?2）;
????????????//畫(huà)圖片的前景噪音點(diǎn)
????????????for?（int?i?=?0;?i?????????????{
????????????????int?x?=?random.Next（image.Width）;
????????????????int?y?=?random.Next（image.Height）;
????????????????image.SetPixel（xyColor.FromArgb（random.Next（）））;//劃點(diǎn)

????????????}
????????????//畫(huà)圖片的邊框線
????

?屬性????????????大小?????日期????時(shí)間???名稱
-----------?---------??----------?-----??----

?????文件???????2928??2008-08-26?10:33??asp.net?學(xué)生信息管理系統(tǒng)源碼?C#\App_Code\Datacon.cs

?????文件????1048576??2008-08-26?11:04??asp.net?學(xué)生信息管理系統(tǒng)源碼?C#\App_Data\CourseManage_Data.MDF

?????文件????1048576??2008-08-26?11:04??asp.net?學(xué)生信息管理系統(tǒng)源碼?C#\App_Data\CourseManage_Log.LDF

?????文件??????20480??2008-05-24?14:44??asp.net?學(xué)生信息管理系統(tǒng)源碼?C#\bin\UseDatabase.dll

?????文件?????????40??2008-06-11?12:37??asp.net?學(xué)生信息管理系統(tǒng)源碼?C#\bin\UseDatabase.dll.refresh

?????文件??????15872??2008-05-24?14:44??asp.net?學(xué)生信息管理系統(tǒng)源碼?C#\bin\UseDatabase.pdb

?????文件???????4328??2008-05-24?14:44??asp.net?學(xué)生信息管理系統(tǒng)源碼?C#\bin\UseDatabase.xml

?????文件????????447??2008-05-12?23:18??asp.net?學(xué)生信息管理系統(tǒng)源碼?C#\checkcode.aspx

?????文件???????3860??2008-08-26?10:49??asp.net?學(xué)生信息管理系統(tǒng)源碼?C#\checkcode.aspx.cs

?????文件???????5938??2008-06-10?20:10??asp.net?學(xué)生信息管理系統(tǒng)源碼?C#\Default.aspx

?????文件???????3827??2008-06-11?00:53??asp.net?學(xué)生信息管理系統(tǒng)源碼?C#\Default.aspx.cs

?????文件???????4945??2007-07-18?09:38??asp.net?學(xué)生信息管理系統(tǒng)源碼?C#\from.gif

?????文件??????21585??2008-04-28?00:03??asp.net?學(xué)生信息管理系統(tǒng)源碼?C#\igm\code.jpg

?????文件???????4945??2007-07-18?09:38??asp.net?學(xué)生信息管理系統(tǒng)源碼?C#\igm\from.gif

?????文件?????203011??2006-11-24?10:54??asp.net?學(xué)生信息管理系統(tǒng)源碼?C#\igm\rightframe.gif

????..A.SH.??????5632??2008-08-26?10:59??asp.net?學(xué)生信息管理系統(tǒng)源碼?C#\igm\Thumbs.db

?????文件??????86589??2008-06-09?01:58??asp.net?學(xué)生信息管理系統(tǒng)源碼?C#\igm\總登錄頁(yè)面.jpg

?????文件???????3171??2008-06-10?20:12??asp.net?學(xué)生信息管理系統(tǒng)源碼?C#\InfoPwd.aspx

?????文件???????1239??2008-06-10?20:10??asp.net?學(xué)生信息管理系統(tǒng)源碼?C#\InfoPwd.aspx.cs

?????文件???????2529??2008-06-10?20:20??asp.net?學(xué)生信息管理系統(tǒng)源碼?C#\InfoPwdd.aspx

?????文件???????1393??2008-06-10?21:39??asp.net?學(xué)生信息管理系統(tǒng)源碼?C#\InfoPwdd.aspx.cs

?????文件???????2357??2006-11-24?10:54??asp.net?學(xué)生信息管理系統(tǒng)源碼?C#\InfoPwddd.aspx

?????文件???????1188??2008-06-10?20:31??asp.net?學(xué)生信息管理系統(tǒng)源碼?C#\InfoPwddd.aspx.cs

?????文件???????3969??2008-08-26?11:02??asp.net?學(xué)生信息管理系統(tǒng)源碼?C#\MasterPage.master

?????文件????????713??2008-06-11?00:21??asp.net?學(xué)生信息管理系統(tǒng)源碼?C#\MasterPage.master.cs

?????文件???????3513??2008-08-26?10:54??asp.net?學(xué)生信息管理系統(tǒng)源碼?C#\MasterPage2.master

?????文件????????712??2008-06-11?13:09??asp.net?學(xué)生信息管理系統(tǒng)源碼?C#\MasterPage2.master.cs

?????文件???????1778??2008-06-11?13:34??asp.net?學(xué)生信息管理系統(tǒng)源碼?C#\stu\cour_choose.aspx

?????文件???????2788??2008-06-11?13:44??asp.net?學(xué)生信息管理系統(tǒng)源碼?C#\stu\cour_choose.aspx.cs

?????文件???????1810??2008-06-11?13:33??asp.net?學(xué)生信息管理系統(tǒng)源碼?C#\stu\cour_infor.aspx

............此處省略47個(gè)文件信息