动态加载验证码(2)

2.在aspx中调用Session中存储的验证码

using System; 
using System.Collections.Generic; 
using System.Linq; 
using System.Web; 
using System.Web.UI; 
using System.Web.UI.WebControls; 
 
public partial class 验证码 : System.Web.UI.Page 
{ 
    protected void Page_Load(object sender, EventArgs e) 
    { 
 
    } 
    protected void Button1_Click(object sender, EventArgs e) 
    { 
        string yzm = Convert.ToString(Session ["Code"]); 
        Response.Write(yzm); 
        if (yzm==TextBox1 .Text ) 
        { 
            Response.Write("验证码正确"); 
        } 
        else 
        { 
            Response.Write("验证码不正确，请重新输入"); 
            TextBox1.Text = ""; 
        } 
    } 
}