<asp:Button ID="Button2" runat="server" Text="返回" OnClick="Button2_Click" /></td>
</tr>
</table>
</form>
</body>
</html>
2、Default.aspx.cs代码如下：
using System;
using System.Data;
using System.Configuration;
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;
//倒入命名空间
using System.Net;
using System.Net.Mail;
public partial class _Default : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
}
protected void Button1_Click(object sender, EventArgs e)
{
////设置发件人信箱,及显示名字
MailAddress from = new MailAddress("zgdx0503@cpp114.com", "延边职大信息中心");
//设置收件人信箱,及显示名字
MailAddress to = new MailAddress(TextBox1.Text, "0503班");
//创建一个MailMessage对象
MailMessage oMail = new MailMessage(from, to);
oMail.Subject = TextBox2.Text; //邮件标题
oMail.Body = TextBox3.Text; //邮件内容
oMail.IsBodyHtml = true; //指定邮件格式,支持HTML格式
oMail.BodyEncoding = System.Text.Encoding.GetEncoding("GB2312");//邮件采用的编码
oMail.Priority = MailPriority.High;//设置邮件的优先级为高
