//nav_box 表格名称

复制代码 代码如下:

$("#nav_box tr").each(function (i) {

//var text = $(this).children("td:first").text();

//var proid = $(this).find("input:hidden").val();

//alert("proid==" + i + "===" + proid);

var num = $("#ProNum" + i).val(); //数量

var price = $("#Price" + i).val();//价格

var percent = $("#Percent" + i).val(); //折扣

var discountAmount = percent * price; //折扣价

$("#discountAmount" + i).val(discountAmount.toFixed(2)) //折扣价格

var total = discountAmount * num; //小计=折扣价*数量

$("#Total" + i).val(total.toFixed(2)); //小计

});