jQuery 选择器 选取奇数位置的 元素

https://blog.csdn.net/iteye_1171/article/details/82673658

$(document).ready(function(){
  $("tr:odd").css("background-color","yellow");
});

$('.table-bordered tbody tr').each(function() {
		$(this).children('td:even').css("background-color","#EFF7FF");
	})