protected void Button1_Click(object sender, EventArgs e) { if (Page.IsValid) { Admin admin = new Admin(); admin.UserName = UserName.Text.ToString(); admin.Password = FormsAuthentication.HashPasswordForStoringInConfigFile(Password.Text.ToString(), "MD5"); admin.LastLoginIP = Request.UserHostAddress; admin.LastLoginTime = DateTime.Now; AdminSystem adminSystem = new AdminSystem(); if (!adminSystem.Login_Admin(admin.UserName)) { if (adminSystem.Add_Admin(admin) > 0) { Response.Write("<script>alert('添加成功');location.href='Get_admin.aspx';</script>"); } else { Response.Write("<script>alert('添加失败');location.href='Get_admin.aspx';</script>"); } } else { Response.Write("<script>alert('管理员已存在');history.back(1);</script>"); } } }