Delphi 解析HTML

uses mshtml;

IHTMLEleMent.ID;

IHTMLEleMent.tagName;

IHTMLEleMent.title;
elmt._className;
elmt.getAttribute('anchor', 0);

procedure TForm1.btnphClick(Sender: TObject);
var
  Document: IHTMLDocument2;
  FTableCollection, tempCoc: IHTMLElementCollection;
  table: IHTMLTABLE;
  TableRow: IHTMLTableRow;
  elmt: IHTMLEleMent;
  I, J, K: integer;
  str: string;
begin
  Document := WebBrowser1.Document as IHTMLDocument2;
  FTableCollection := Document.all;
  FTableCollection.Length; //
  FTableCollection.item(1, 0);
  FTableCollection := Document.all.tags('table') as IHTMLElementCollection;
  for I := 0 to FTableCollection.Length - 1 do
  begin
    table := FTableCollection.item(I, 0) as IHTMLTABLE;  //题数
    for J := 0 to table.rows.Length - 1 do
    begin
      TableRow := (table.rows.item(J, 0) as IHTMLTableRow); //每道题信息
      str := '';
      for K := 0 to TableRow.cells.Length - 1 do
      begin
        elmt := TableRow.cells.item(K, 0) as IHTMLEleMent;
        str := str + elmt.innerText + #9;
      end;
      str := StringReplace(str, ''#$D#$A'', '', [rfReplaceAll]);
      Memo3.Lines.Add(str);
      Memo3.Lines.Add('------------------------------------------');
    end;
  end;
end;

  URL := 'http://bbs.csdn.net/forums/Delphi';
  WebBrowser1.Navigate(URL);

下面是一行tablerow的数据，可以分解出来，<td><td>之间是一个cell列。

如何解析第一列的href、class之间的3个数据呢，？、delphi7 滚动条颜色、VCL组件开发及应用

 

          <tr>
    <td class="title">
      <strong class="green">？</strong>
      <a href="/topics/390861446" target="_blank" title="delphi7 滚动条颜色">delphi7 滚动条颜色</a>
      <span class="forum_link">[<span class="parent"><a href="/forums/Delphi">Delphi</a></span> <a href="/forums/DelphiVCL">VCL组件开发及应用</a>]</span>
    </td>
    <td class="tc">20</td>
    <td class="tc">
      <a href="http://my.csdn.net/u010745617" rel="nofollow" target="_blank">u010745617</a><br />
      <span class="time">08-15 16:25</span></td>
    <td class="tc">1</td>
    <td class="tc">
      <a href="http://my.csdn.net/NongCunGongLu" rel="nofollow" target="_blank">NongCunGongLu</a><br />
      <span class="time">08-17 13:41</span>
    </td>
    <td class="tc">
      <a href="/topics/390861446/close" target="_blank">管理</a>
    </td>
  </tr>

 

    <td class="title">
      <strong class="green">？</strong>
      <a href="/topics/390861446" target="_blank" title="delphi7 滚动条颜色">delphi7 滚动条颜色</a>
      <span class="forum_link">[<span class="parent"><a href="/forums/Delphi">Delphi</a></span> <a href="/forums/DelphiVCL">VCL组件开发及应用</a>]</span>
    </td>

把td这一部分IHTMLEleMent当作IHTMLElementCollection解析就可以了，tagName，getAttribute('href',0)，title,_className都可以获得正确的值，是6个集合元素。

       tempCoc := elmt.all as IHTMLElementCollection;
        if (tempCoc.Length = 6) then
        begin
          for q := 0 to tempCoc.Length - 1 do
          begin
            emt2 := tempCoc.item(q, 0) as IHTMLEleMent;
            if emt2.tagName = 'STRONG' then
              s2 := emt2.innerText
            else if emt2.tagName = 'A' then
            begin
              s2 := emt2.getAttribute('href',0);
              s2 := emt2.title;
              s2 := emt2.innerText;
            end
            else if emt2.tagName = 'SPAN' then
            begin
              emt2.tagName;
              emt2._className;
              emt2.title;
              emt2.innerText;
            end;
          end;
        end;

 elmt: IHTMLEleMent;

  elmt := (WebBrowser1.Document as ihtmldocument3).getElementById('idbtn001');

getElementsByName

getElementById

getElementsByTagName

 

doc2: IHTMLDocument2;
doc3: IHTMLDocument3;

  doc2.forms.item('form1',0) as IHTMLFormElement;//取form1的表单

 

elmt := (WebBrowser1.Document as IHTMLDocument3).getElementById('divfirstID');//通过ID取得某个节点

elmt := ((elmt.children as IHTMLElementCollection).item(0, 0)) as IHTMLEleMent;//子节点
elmt := ((elmt.children as IHTMLElementCollection).item(0, 0)) as IHTMLEleMent;//子节点
elmt := ((elmt.children as IHTMLElementCollection).item(0, 0)) as IHTMLEleMent;//子节点
elmt := ((elmt.children as IHTMLElementCollection).item(2, 0)) as IHTMLEleMent;//子节点里的第3个子节点
elmt := ((elmt.children as IHTMLElementCollection).item(0, 0)) as IHTMLEleMent;//子节点