一方面另一方面英文:vfp9.0通过WebBrowser控件获取QQ新闻标题及链接

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vfp9.0通过WebBrowser控件获取QQ新闻标题及链接

分类: VFP - API·WMI·ActiveX应用 VFP - 编程技巧 2011-09-19 14:48 223人阅读 评论(4) 收藏 举报

*!* vfp9.0通过WebBrowser控件获取QQ新闻标题及链接
*!*  -------------------------------------------
*!*     作者:十豆三
*!*     日期:2011-09-17
*!*  vfp版本:vfp9.0
*!* 控件名称: Microsoft Web Browser(Microsoft Internet Controls)
*!* 控件版本:1.1
*!*   ProgID:Shell.Explorer.2
*!* 文件位置: C:\WINDOWS\system32\ieframe.dll
*!* 文件版本:8.00.6001.19098 (IE8.0)


Public oform1


oform1=Newobject("form1")
oform1.Show
Return
 

Define Class form1As Form


    Top = 11
    Left = 26
    Height = 600
    Width = 800
    DoCreate = .T.
    Caption = "Form1"
    Name = "Form1"


    Add Object olecontrol1As OleControl With;
        Top = 0, ;
        Left = 0, ;
        Height = 468, ;
        Width = 800, ;
        Name = "Olecontrol1", ;
        OleClass = "Shell.Explorer.2", ;
        OleLCID = 1033


    Add Object command1As CommandButton With;
        Top = 521, ;
        Left = 677, ;
        Height = 25, ;
        Width = 121, ;
        Caption = "取得新闻标题和URL", ;
        Name = "Command1"


    Add Object grid1As Grid With;
        DeleteMark = .F., ;
        Height = 129, ;
        Left = 2, ;
        ReadOnly = .T., ;
        Top = 470, ;
        Visible = .F., ;
        Width = 673, ;
        Name = "Grid1"


    Procedure Load
        _vfp.AutoYield=.F.
    Endproc


    Procedure Unload
        _vfp.AutoYield=.T.
    Endproc
 

    Procedure olecontrol1.Init
        This.Navigate("http://roll.news.qq.com/")
    Endproc
 

    Procedure command1.Click
        lcMyCaption=This.Caption
        This.Caption='正在获取......'
        This.Enabled=.F.
        Create Cursor T1 (类别 C(6),新闻标题 C(254),新闻链接 C(254),时间 C(11))
        Thisform.Olecontrol1.Document.getElementById("auto_refresh").parentNode.className='check checked'
        Thisform.Olecontrol1.Document.parentWindow.Execscript('AutoRefresh()')&& 取消自动刷新
        lnTotalPages=Val(Thisform.Olecontrol1.Document.getElementById("totalPage").Value)&& 取得部页数
        If Messagebox('共有'+Transform(lnTotalPages)+'页新闻,点<是>取得所有页的新闻,点击<否>只取当第1页的新闻。',4+32+256,'信息提示')=7
            lnTotalPages=1
        Endif
        For m.lnJ=1 TolnTotalPages&& 循环所有页,每页50条新闻,如果只需TOP N条,修改此处。
            If m.lnJ>1
                Thisform.Olecontrol1.Document.parentWindow.Execscript('nextPage()')&& 下一页
            Endif
            Do While .T.
                If Thisform.Olecontrol1.Document.getElementById("artContainer").innerhtml<>'

正在查询请稍候……
'
                    Exit
                Endif
                Inkey(0.2,"H") &&防止程序失去响应
            Enddo
            lcListStr=Thisform.Olecontrol1.Document.getElementById("artContainer").innerhtml&& 取得当前页新闻内容
            lnLIs=Occurs('
  • ',lcListStr)
                For m.lnI=1TolnLIs
                    Insert Into T1 Values(Strextract(lcListStr,'t-tit>','','',m.lnI),;
                                            Strextract(lcListStr,'href="','" target',m.lnI),Strextract(lcListStr,'t-time>','            Endfor
            Endfor
            Locate
            Thisform.Grid1.RecordSource='T1'
            Thisform.Grid1.Visible=.T.
            Thisform.Grid1.AutoFit()
            Thisform.Grid1.Refresh
            This.Caption=lcMyCaption
            This.Enabled=.T.
            Messagebox('取得新闻信息完成!'+Chr(10)+Chr(10)+'共取得'+Transform(Reccount('T1'))+'条新闻',64,'信息提示')
        Endproc
     

        Procedure Grid1.Scrolled
            Lparameters nDirection
            This.AutoFit()
        Endproc
     

    Enddefine