conStr = "Data Source=WIN-58FJ35C0IMC;Initial Catalog=trainbook; Integrated Security=True";
SqlConnection con = new SqlConnection(conStr);
//打开数据库
con.Open();
string sqlsele="select count（*） from 用户 where 用户ID=@name and 密码=@passw";
//创建SqlCommand对象
SqlCommand mycom = new SqlCommand(sqlsele , con);
//使用Parameter的add方法添加参数类型
mycom.Parameters.Add(new SqlParameter("name", SqlDbType.VarChar, 20));
mycom.Parameters.Add(new SqlParameter("passw", SqlDbType.VarChar, 50));
//设置Parameters的参数值
mycom.Parameters["name"].Value = TextBox1.Text;
//使用MD5加密将的用户输入的密码加密
string pwd = FormsAuthentication.HashPasswordForStoringInConfigFile(TextBox2.Text.Trim(), "MD5");
mycom.Parameters["passw"].Value = pwd;
if (Convert.ToInt32(mycom.ExecuteScalar()) > 0)
{
Response .Write ("<script>alert('登录成功！')</script>");
//清空文本框
TextBox1.Text = TextBox2.Text = TextBox3.Text = "";
Response.Redirect ("~/shouye.aspx");
}
红色那句老报错：‘（’附近有语法错误，求高手帮忙看看。不胜感激
