c# 抓取Web网页数据分析

webb.Navigate("about:blank"); 
HtmlDocument htmldoc = webb.Document.OpenNew(true); 
htmldoc.Write(strWeb); 
HtmlElementCollection htmlTR = htmldoc.GetElementsByTagName("TR"); 
foreach (HtmlElement tr in htmlTR) 
{ 
string strID = tr.GetElementsByTagName("TD")[0].InnerText; 
string strName = SplitName(tr.GetElementsByTagName("TD")[1].InnerText, "MusicName"); 
string strSinger = SplitName(tr.GetElementsByTagName("TD")[1].InnerText, "Singer"); 
strID = strID.Replace(".", ""); 
//插入DataTable 
AddLine(strID, strName, strSinger,"0"); 
string strID1 = tr.GetElementsByTagName("TD")[2].InnerText; 
string strName1 = SplitName(tr.GetElementsByTagName("TD")[3].InnerText, "MusicName"); 
string strSinger1 = SplitName(tr.GetElementsByTagName("TD")[3].InnerText, "Singer"); 
//插入DataTable 
strID1 = strID1.Replace(".", ""); 
AddLine(strID1, strName1, strSinger1,"0"); 
string strID2 = tr.GetElementsByTagName("TD")[4].InnerText; 
string strName2 = SplitName(tr.GetElementsByTagName("TD")[5].InnerText, "MusicName"); 
string strSinger2 = SplitName(tr.GetElementsByTagName("TD")[5].InnerText, "Singer"); 
//插入DataTable 
strID2 = strID2.Replace(".", ""); 
AddLine(strID2, strName2, strSinger2,"0"); 
} 
//插入数据库 
InsertData(dt); 
　　　 
dataGridView1.DataSource = dt.DefaultView; 
}