谁能解释下这段代码？

[kangbazi2012]

//从数据库中选择多选题
case 2:
SqlDataAdapter myadapter2 = new SqlDataAdapter("select * "
+ "from tb_Questions where que_type='多选题'and que_lessonid='"
+ dd1 + "'and que_taotiid='" + dd2 + "'order by id desc", con);
DataSet myds2 = new DataSet();
myadapter2.Fill(myds2);
DataList2.DataSource = myds2;
DataList2.DataBind();
//生成多选题题号
for (int tID2 = 1; tID2 <= DataList2.Items.Count; tID2++)
{
Label lblDSelect = (Label)DataList2.Items[tID2 - 1].FindControl("Label24");
lblDSelect.Text = tID2.ToString() + "、";
}
break;
//核对单选题答案
case 3:
SqlDataAdapter myadapter3 = new SqlDataAdapter("select id,que_answer"
+ " from tb_Questions where que_type='单选题'and que_lessonid="
+ dd1 + " and que_taotiid=" + dd2 + " order by id desc", con);
DataSet myds3 = new DataSet();
myadapter3.Fill(myds3);
DataRow[] row1 = myds3.Tables[0].Select();
//计算单选题成绩
foreach (DataRow answer1 in row1)
{
int_row1 += 1;
if (int_row1<= 3)
{
RadioButtonList rbl = (RadioButtonList)(DataList1.Items[int_row1 - 1].FindControl("RadioButtonList1"));
if (rbl.SelectedValue == "")
{
this.lblSel.Text = "0";
}
else
{
if (answer1["que_answer"].ToString().Trim() == rbl.SelectedValue.ToString().Trim())
{
int_row1Point += 40 / DataList1.Items.Count;
this.lblSel.Text = int_row1Point.ToString();
}
}
}
}
break;
要很具体很纤细的那种

[orochiheart]

小伙 是不是要答辩了！

[kangbazi2012]

你怎么知道，求救