protected void Page_Load(object sender, EventArgs e)
{
lbchecking.Text = RandomNum(4);
}
public string RandomNum(int n)
{
string strchar = "0,1,2,3,4,5,6,7,8,9";
string[] Varray = 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(10);
if (temp != -1 && temp == t)
{
return RanNum(n);
}
temp = t;
VNum += Varray[t];
}
return VNum;
}
private string RanNum(int codeNum)
{
string Vchar = "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,W,X,Y,Z";
string[] Varray = Vchar.Split(",".ToCharArray());
string VNum = "";
int i;
for (i = 1; i < codeNum; i++)
{
System.Random ro = new Random();
double deca = ro.NextDouble();
VNum=VNum+Varray[Convert.ToInt32(35*deca)];
}
return VNum;
}
protected void Button2_Click(object sender, EventArgs e)
{
Response.Redirect("~/用户登录界面/注册界面.aspx");
}
protected void Button1_Click(object sender, EventArgs e)
{
if (lbchecking.Text == Txtcheck.Text)
{
Response.Redirect("~/用户登录界面/身份识别界面.aspx");
}
else
{
Response.Write("");
最后的else
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