帮忙看一下这段代码什么意思

Question

private void button2_Click(object sender, EventArgs e)
{
conn = new SqlConnection(connString);
conn.Open();
if (dataGridView1.Rows.Count > 0)
{
DataRow dr = null;
for (int i = 0; i < dt.Rows.Count; i++)
{
dr = dt.Rows[i];
insertToSql(dr);
}
conn.Close();

            MessageBox.Show("导入成功！");
        }
        else
        {
            MessageBox.Show("没有数据！");
        }


    }

Answer 1

//数据库连接
conn = new SqlConnection(connString);
conn.Open();
if (dataGridView1.Rows.Count > 0)
{
DataRow dr = null;
for (int i = 0; i < dt.Rows.Count; i++)
{
dr = dt.Rows[i];
insertToSql(dr);//把dataGridView1的每行数据写入到数据库中
}
conn.Close();

MessageBox.Show("导入成功！");
}
else
{
MessageBox.Show("没有数据！");
}