- 类定义:
- #region 验证码
- public string sjnum(int n)
- {
- string strchar = "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F,G,H,I,J,K,L,M,N,O,P,Q,R,S,T,U,V,W,X,Y,Z,a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,t,u,v,w,x,y,z";
- string[] VcArray = strchar.Split(',');
- string VNum = "";
- int temp = -1;
- Random rand = new Random();
- for (int i = 1; i < n + 1; i++)
- {
- if (temp != -1)
- {
- rand = new Random(i * temp * unchecked((int)DateTime.Now.Ticks));
- }
- int t = rand.Next(61);
- if (temp != -1 && temp == t)
- {
- return sjnum(n);
- }
- temp = t;
- VNum += VcArray[t];
- }
- return VNum;
- }//登录验证
- #endregion
- 登录界面代码:
- protected void Page_Load(object sender, EventArgs e)
- {
- if (!Page.IsPostBack)
- {
-
- }
- }
- protected void Button2_Click(object sender, EventArgs e)
- {
- Response.Redirect("index.aspx");
- }
- protected void Button1_Click(object sender, EventArgs e)
- {
- gly ds1 = new gly();
- if (TextBox1.Text == "" || TextBox2.Text == "")
- {
- gly.infoAndRedirect("登录名和密码不能为空!", "login.aspx");
- }
- else
- {
- if (TextBox3.Text == Label1.Text)
- {
- ds1.gzh = TextBox1.Text;
- ds1.gmm = TextBox2.Text;
- int flag = ds1.glylog();
- if (flag == 1)
- {
- gly.infoAndRedirect("登录成功!", "../admin/newsdatas.aspx");
- }
- else
- {
- gly.infoAndRedirect("信息有误!", "login.aspx");
- }
- }
- }
- }
复制代码 登录的代码里改,谢谢! |