使用jQuery操作HTML的table表格的实例解析_jquery

.td_back_color { background-color: red; } .td_center { text-align: center; font-weight:bold; }

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2013春节聚会收支统计
 
 
姓名
 
吃饭
 
KTV
 
烧烤
 
支出
 
应付
 
 
 
周竞成
 
 
 
 
 
 

var data = [ { picture : "http://ww1.sinaimg.cn/mw690/51baa38egw1dzl6l2hjchj.jpg", name : "周竞成", leftTime : "二月五号", phone : "186****2296", qq : "", workedIn : "浙江 杭州", cost : 200, project : "吃饭，KTV，烧烤" }, ........ // 初始化shuju var init = function() { var tbl_count = $("#tbl_count tr:gt(0)"); // 吃饭 var meal_text = $("#tbl_count tr:first th:eq(1)").text(); // KTV var ktv_text = $("#tbl_count tr:first th:eq(2)").text(); // 烧烤 var bbq_text = $("#tbl_count tr:first th:eq(3)").text(); $.each(tbl_count, function(i,v){ var tr_info = tbl_count.eq(i); for (var i = 0; i < data.length; i++) { var data_info = data[i]; // 判断姓名相同的 if(data_info.name == tr_info.find("th:first").text()){ if(data_info.project.indexOf(meal_text) != -1){ tr_info.find("td:eq(0)").addClass("td_back_color"); } if(data_info.project.indexOf(ktv_text) != -1){ tr_info.find("td:eq(1)").addClass("td_back_color"); } if(data_info.project.indexOf(bbq_text) != -1){ tr_info.find("td:eq(2)").addClass("td_back_color"); } tr_info.find("td:eq(3)").addClass("td_center").text("￥"+data_info.cost); } } }); };

var rowCount = $('#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  in a table body  $.fn.rowCount = function() { return $('tr', $(this).find('tbody')).length; }; // USAGE: var rowCount = $('#productTypesTable').rowCount(); alert(jQuery("#jtkList").find("table").eq(0).find("tr").length);