使用正則表達式從巨大的表html中查找某些td值

Question

我需要為大塊的html寫一個正則表達式。

<td width=342 align=left style='width:256pt'>&nbsp;HF Acciones Lideres - Clase G</td><td width=24  align=center style='width:18pt'>ARS   </td><td width=24  align=center style='width:18pt'>Arg   </td><td width=24  align=center style='width:18pt'>Lar   </td><td width=60 align=center style='width:45pt'>08/10/14</td><td width=88 align=right style='width:64pt'>1738.383</td><td width=83 align=right style='width:62pt'>51,427,906</td><td width=83 align=right style='width:62pt'>89,401,382</td>

僅在第一個td為HF Acciones Lideres時，我才需要獲取日期（08/10/14）和值（1738.383）。我已經編寫了這段代碼，但是在第一個td不是HF Acciones Lideres的情況下，它會重復一些值-ClaseG。

請參閱（注意：regexr不允許保存完整的html，所以我將放在這里）： http ://regexr.com/3alo4

完整的html http://fondosargentina.org.ar/scripts/cf_EstadisticaDiariaAntDetalle.asp?Fecha=08/10/14&Clasi_Id=00001

Answer 1

您可以使用jQuery搜索方法找到這些值：

 $(document).ready(function() { var $tr = $("td:contains('Lideres - Clase G')").parent(); var date = ""; var total = ""; $tr.children("td").each(function(i) { if (i==4) date = $(this).text(); if (i==5) total = $(this).text(); }); alert("date="+ date + ", total=" +total); }); 

 <script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script> <table border=1 cellpadding=0 cellspacing=0 width=728 style="font-family: Arial; font-size: 8 pt; position: absolute; left: 25; table-layout:fixed; width:546"> <tr height=17> <td width=342 align=left style='width:256pt'>&nbsp;1810 Renta Variable Argentina</td> <td width=24 align=center style='width:18pt'>ARS </td> <td width=24 align=center style='width:18pt'>Arg </td> <td width=24 align=center style='width:18pt'>Lar </td> <td width=60 align=center style='width:45pt'>08/10/14</td> <td width=88 align=right style='width:64pt'>13905.228</td> <td width=83 align=right style='width:62pt'>2,866,017</td> <td width=83 align=right style='width:62pt'>39,852,620</td> </tr> <tr height=17> <td width=342 align=left style='width:256pt'>&nbsp;1822 Raices Valores Negociables</td> <td width=24 align=center style='width:18pt'>ARS </td> <td width=24 align=center style='width:18pt'>Arg </td> <td width=24 align=center style='width:18pt'>Lar </td> <td width=60 align=center style='width:45pt'>08/10/14</td> <td width=88 align=right style='width:64pt'>139941.375</td> <td width=83 align=right style='width:62pt'>297,644</td> <td width=83 align=right style='width:62pt'>41,652,710</td> </tr> <tr height=17> <td width=342 align=left style='width:256pt'>&nbsp;AL Renta Variable - Clase A</td> <td width=24 align=center style='width:18pt'>ARS </td> <td width=24 align=center style='width:18pt'>Arg </td> <td width=24 align=center style='width:18pt'>Lar </td> <td width=60 align=center style='width:45pt'>08/10/14</td> <td width=88 align=right style='width:64pt'>5047.820</td> <td width=83 align=right style='width:62pt'>277,968</td> <td width=83 align=right style='width:62pt'>1,403,133</td> </tr> <tr height=17> <td width=342 align=left style='width:256pt'>&nbsp;AL Renta Variable - Clase B</td> <td width=24 align=center style='width:18pt'>ARS </td> <td width=24 align=center style='width:18pt'>Arg </td> <td width=24 align=center style='width:18pt'>Lar </td> <td width=60 align=center style='width:45pt'>08/10/14</td> <td width=88 align=right style='width:64pt'>5704.307</td> <td width=83 align=right style='width:62pt'>3,655,663</td> <td width=83 align=right style='width:62pt'>20,853,021</td> </tr> <tr height=17> <td width=342 align=left style='width:256pt'>&nbsp;AL Renta Variable II - Clase A</td> <td width=24 align=center style='width:18pt'>ARS </td> <td width=24 align=center style='width:18pt'>Arg </td> <td width=24 align=center style='width:18pt'>Lar </td> <td width=60 align=center style='width:45pt'>03/09/12</td> <td width=88 align=right style='width:64pt'>1604.331</td> <td width=83 align=right style='width:62pt'>8,658</td> <td width=83 align=right style='width:62pt'>13,890</td> </tr> <tr height=17> <td width=342 align=left style='width:256pt'>HF Acciones Lideres - Clase G</td> <td width=24 align=center style='width:18pt'>ARS </td> <td width=24 align=center style='width:18pt'>Arg </td> <td width=24 align=center style='width:18pt'>Lar </td> <td width=60 align=center style='width:45pt'>08/10/14</td> <td width=88 align=right style='width:64pt'>1738.383</td> <td width=83 align=right style='width:62pt'>51,427,906</td> <td width=83 align=right style='width:62pt'>89,401,382</td> </tr> </table>