jquery--dynamically add an ordinal to a table

Excerpt from: http://www.cnblogs.com/picaso/archive/2012/10/08/2715564.html

Many times the need to work on the table dynamic, and generally there will be a table ordinal, but sometimes we have a direct output of the table is more troublesome, so try to use jquery dynamic output ~ ~

<! DOCTYPE HTML PUBLIC "-//W3C//DTD XHTML 1.0 transitional//en" "Http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd ">

Original effect:

The JS code is as follows:

$ (function () {        //$ (' Table Tr:not (: First) '). Remove ();        var len = $ (' Table tr '). Length;        for (var i = 1;i<len;i++) {            $ (' Table Tr:eq (' +i+ ') Td:first '). text (i);        }            );

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jquery--dynamically add an ordinal to a table