如果提取网页中的变量 - 回复 lancernig 的问题-优快云博客

为什么80%的码农都做不了架构师？>>>

问题来源: http://www.cnblogs.com/del/archive/2008/04/02/1131232.html#1133889

答案: WebBrowser1.OleObject.Document.ParentWindow.变量名;

譬如有这样一个页面(lancernig 举的例子), 如何提取其中的 pvs 呢:

<html> <head> <title>测试页</title> <script language="javascript" type="text/javascript"> var smoneyval = "0"; var cival = "0"; //var ssum = 0; var smoneys = "0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0" ; var cis = "0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0"; var pvs = "140.74,142.51,106.64,86.39,77.71,52.48,38.90,28.76,25.59,19.23,17.23,14.24,12.21,12.00,12.33,12.33,13.55,14.28,19.80,24.34,32.21,38.80,46.47,74.96,94.80,117.13,174.36,269.35"; var smoneys_Array = smoneys.split(","); var cis_Array = cis.split(","); var pvs_Array = pvs.split(","); </script> </head> <body> ... </body> </html>

假定是把页面保存在 'c:\temp\test.htm', 测试代码如下:

unit Unit1;

interface

uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, StdCtrls, OleCtrls, SHDocVw;

type
  TForm1 = class(TForm)
    WebBrowser1: TWebBrowser;
    Button1: TButton;
    procedure FormCreate(Sender: TObject);
    procedure Button1Click(Sender: TObject);
  end;

var
  Form1: TForm1;

implementation

{$R *.dfm}

procedure TForm1.FormCreate(Sender: TObject);
begin
  WebBrowser1.Navigate('c:\temp\test.htm');
end;

procedure TForm1.Button1Click(Sender: TObject);
var
  s: string;
begin
  {提取 smoneys}
  s := WebBrowser1.OleObject.Document.ParentWindow.smoneys;
  ShowMessage(s);

  {提取 pvs}
  s := WebBrowser1.OleObject.Document.ParentWindow.pvs;
  ShowMessage(s);
end;

end.

转载于:https://my.oschina.net/hermer/blog/320698