分享一个jQuery获取表格总行数的实例代码

var row
Count
 = $('#myTable tr').length;  
var rowCount = $('#myTable >tbody >tr').length;  
$("#myTable").attr('rows').length;  
var rowCount = $('table#myTable:last').index() + 1;  
//Helper function that gets a count of all the rows <TR> in a table body <TBODY>  
$.fn.rowCount = function() {  
    return $(&#39;tr&#39;, $(this).find(&#39;tbody&#39;)).length;  
};  
  
// USAGE:  
var rowCount = $(&#39;#productTypesTable&#39;).rowCount();  
alert(jQuery("#jtkList").find("table").eq(0).find("tr").length);