javascript - jQuery计算价格不起作用(正确)

Question

$(function() {

var base_price = 0;
CalculatePrice();

$(".math1").on('change', function(e) {
    CalculatePrice();
});


function CalculatePrice() {
    var base_cost = base_price;
    $('.math1').each(function() {
        base_cost += $(this).find('option:selected').data("price");
    });
    $("#price").text(base_cost.toFixed(2)*32);    
}


});

该脚本将查看所选选项的所有数据价格并执行以下操作:

data-price (of select 1) + data-price (of select 2)

但它需要这样做:

data-price (of select 1) * data-price (of select 2)

它将返回一个标准值，例如:

2 person room = $32, 2 2 person rooms = $64 (correctly)
4 person room = $64, 2 4 person rooms = $96 (must be + 64 instead of 32 so will return $128)
6 persoon room = $128, 2 6 person rooms= $160 (must be +128 so will return $256)

fiddle : http://jsfiddle.net/5HkEh/3/

注意:这不起作用

base_cost *= $(this).find('option:selected').data("price");

Answer 1

设置 base_price = 1
然后更改您的+=至*=