//计算总价
function cartTotal(){
var total = 0;
//循环计算的列,选中计算的数量和价格
//accAdd为精BigDecimal准计算方法
$.each($(".eatmenu_foot"), function() {
var priceSplit = $(this).children(":first").text().split('¥');
var price = parseInt(priceSplit[1]);
var count = $(this).children(":last-child").children("input").val();
total = accAdd(total,accMul(price,count));
});
$("#sum").text("¥"+total);
}