【ADO.NET】3、从TXT中导入数据到数据库

private void btnInput_Click(object sender, EventArgs e)
 {
    if (opFile.ShowDialog() != DialogResult.OK)    //判断用户点击 确定 还是 取消,不点确定,则返回程序
     {
           return;
     }
     using(FileStream FStream = File.OpenRead(opFile.FileName))        //打开文件进行读取
     {
        //定义字符编码为GB2312
        using (StreamReader stremReader = new StreamReader(FStream,Encoding.GetEncoding("GB2312")))    
    　　{
        using (SqlConnection conn = new SqlConnection(@"server=.;database=mytest;uid=sa;pwd=gao"))
          {
             conn.Open();
             using (SqlCommand cmd = conn.CreateCommand())
             {
               cmd.CommandText = "insert into T_Age(Name,Age) values(@N,@A)";
               string line = null;

               while ((line = stremReader.ReadLine()) != null)    //读取文本中一行数据,当不为空时
               {
                 string[] strs = line.Split('-');        // 按"-"符分割字符串
                 string name = strs[0];
                 int age = Convert.ToInt32(strs[1]);
                 cmd.Parameters.Clear(); //参数不能重复添加,在while中一直用的是这个SqlCommand对象
         　　　　 cmd.Parameters.Add(new SqlParameter("@N", name));
                 cmd.Parameters.Add(new SqlParameter("@A", age));
                 cmd.ExecuteNonQuery();
                 }
               }
           }
    　　}
        MessageBox.Show("导入成功！");
     } 
 }