计算价格取决于没有按钮的选择

我想添加price并与if语句相乘，以澄清这里是变量的一些价格成人专用=100，儿童专用= 50;成人专用=40，儿童专用= 30成人atv=100，儿童80，或无atv=0

如果唯一的成人在网上预订，我希望价格的反应就像两个选择的总和乘以成人例子的数量成人图书与亚视共享所以40+100=140 *成人数量

如果成人和儿童预订共享亚视，那么它应该反应像40+100=140 *成人人数30+80=110 *儿童人数结果应为(110 *儿童人数)+(140 *成人人数)

<!doctype html>
<html lang="en">
<head>
<title>Title</title>
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<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
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<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/css/bootstrap.min.css" integrity="sha384-ggOyR0iXCbMQv3Xipma34MD+dH/1fQ784/j6cY/iJTQUOhcWr7x9JvoRxT2MZw1T" crossorigin="anonymous">
<style>
.small-img-group {
display: flex;
justify-content: space-between;
}

.small-img-col {
flex-basis: 24%;
cursor: pointer;
}

.counter1 {
float: left;
display: flex;
justify-content: space-between;
overflow-x: hidden;
overflow-y: hidden;
}

.counter2 {
float: left;
display: flex;
justify-content: space-between;
overflow-x: hidden;
overflow-y: hidden;
padding-left: 15px;
}

.up,
.down {
display: inline-block;
color: rgb(0, 0, 0);
font-size: 20px;
margin: 1px 1px;
cursor: pointer;
width: 15px;
line-height: 14px;
height: 16px;
text-align: center;
font-weight: bold;
border: 1px solid #000;
user-select: none;
}

.up:hover,
.down:hover {
color: #fd0b3f;
text-align: center;
}

.adults {
padding-right: 5px;
}

.children {
padding-right: 5px;
}

input {
appearance: none;
height: 21px;
text-align: center;
width: 42px;
line-height: 24px;
font-size: 15px;
border-radius: 5px;
}

.container {
display: flex;
}

input[type="radio"] {
display: none;
}

label[for=private] {
position: relative;
color: orangered;
font-size: 20px;
border: 2px solid orangered;
border-radius: 5px;
align-items: left;
display: flex;
cursor: pointer;
margin-right: 10px;
}

label[for=shared] {
position: relative;
color: orangered;
font-size: 20px;
border: 2px solid orangered;
border-radius: 5px;
align-items: left;
display: flex;
cursor: pointer;
}

input[type="radio"]:checked+label {
background-color: orangered;
color: white;
}

input[type="radio"]:checked+label:before {
height: 16px;
width: 16px;
border: 10px solid white;
background-color: orangered;
}
</style>
</head>
<body>
<section class="container sproduct my-5 pt-5">
<div class="row mt-5">
<div class="col-lg-5 col-md-12 col-12">
<img class="img-fluid w-100 pb-1" src="https://skylandtourism.com/wp-content/uploads/2018/03/Morning-Safari.jpg" alt="" id="MainImg" width="450">
<div class="small-img-group">
<div class="small-img-col">
<img src="https://media.tacdn.com/media/attractions-splice-spp-674x446/09/99/99/87.jpg" width="100%" class="small-img" alt="">
</div>
<div class="small-img-col">
<img src="https://skylandtourism.com/wp-content/uploads/2018/03/Morning-Safari.jpg" width="100%" class="small-img" alt="">
</div>
<div class="small-img-col">
<img src="https://skylandtourism.com/wp-content/uploads/2018/03/Morning-Safari.jpg" width="100%" class="small-img" alt="">
</div>
<div class="small-img-col">
<img src="https://skylandtourism.com/wp-content/uploads/2018/03/Morning-Safari.jpg" width="100%" class="small-img" alt="">
</div>
</div>
</div>
<div class="col-lg-6 col-md-12 col-12">
<h6>Home / Morning Safari</h6>
<h3>Morning Safari</h3>
<h2> <label> Total:</label><label class="total Price"></label> </h2>
<div class="counter1">
<Label class="Adults">Adults</Label>
<div class='down' onclick='decreaseCount(event, this)'>-</div>
<input type='text' value='1' readonly>
<div class='up' onclick='increaseCount(event, this)'>+</div>
</div>
<div class="counter2">
<Label class="Children">Children</Label>
<div class='down' onclick='decreaseCount2(event, this)'>-</div>
<input type='text' value='0' readonly>
<div class='up' onclick='increaseCount(event, this)'>+</div>
</div>
<div class="container" style="padding-left: 0;padding-top: 5px;">
<div>
<input type="radio" name="occupancy" id="private" checked="checked">
<label for="private">Private</label>
<input type="radio" name="occupancy" id="shared">
<label for="shared">Shared</label>
</div>
<div>
<input type="radio" name="atv" id="withatv" checked="checked">
<label for="withatv">With ATV</label>
<input type="radio" name="atv" id="withoutatv">
<label for="withoutatv">Without ATV</label>
</div>
</div>
</div>
</div>
</section>
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<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.7/umd/popper.min.js" integrity="sha384-UO2eT0CpHqdSJQ6hJty5KVphtPhzWj9WO1clHTMGa3JDZwrnQq4sF86dIHNDz0W1" crossorigin="anonymous"></script>
<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/js/bootstrap.min.js" integrity="sha384-JjSmVgyd0p3pXB1rRibZUAYoIIy6OrQ6VrjIEaFf/nJGzIxFDsf4x0xIM+B07jRM" crossorigin="anonymous"></script>
<script>
function increaseCount(e, el) {
var input = el.previousElementSibling;
var value = parseInt(input.value, 10);
value = isNaN(value) ? 0 : value;
value++;
input.value = value;
}
function decreaseCount(e, el) {
var input = el.nextElementSibling;
var value = parseInt(input.value, 10);
if (value > 1) {
value = isNaN(value) ? 0 : value;
value--;
input.value = value;
}
}
function decreaseCount2(e, el) {
var input = el.nextElementSibling;
var value = parseInt(input.value, 10);
if (value > 0) {
value = isNaN(value) ? 0 : value;
value--;
input.value = value;
}
}
var MainImg = document.getElementById('MainImg');
var smallimg = document.getElementsByClassName('small-img');
smallimg[0].onclick = function() {
MainImg.src = smallimg[0].src;
}
smallimg[1].onclick = function() {
MainImg.src = smallimg[1].src;
}
smallimg[2].onclick = function() {
MainImg.src = smallimg[2].src;
}
smallimg[3].onclick = function() {
MainImg.src = smallimg[3].src;
}
</script>
</body>
</html>

我做了多次更改，以便能够以更简单的方式工作:

步骤0 - HTML在adults,children输入中包含id(以便能够获得这些值)
步骤1 - HTML每次修改后(更改儿童/成人，atv/无atv，私人/共享)呈现不完全
步骤2 - JS计算新的总数并渲染

Plnkr示例:https://plnkr.co/edit/XOebeFyHNXFswNI4

step0 &1: HTML:

onclick="updateTotal()"
/>
<label for="withatv">With ATV</label>
<input
type="radio"
name="atv"
id="withoutatv"
onclick="updateTotal()"
/>
<label for="withoutatv">Without ATV</label>
</div>
</div>

步骤2:

function calculateTotal() {
// Define based Prices
const privateAdultPrice = 100;
const sharedAdultPrice = 40;
const privateChildrenPrice = 50;
const sharedChildrenPrice = 30;
const withAtvAdultPrice = 100;
const withAtvChildrenPrice = 80;
const noAtvPrice = 0;
// Get the amount of adults and guests
const adults = +document.querySelector('#adults').value;
const children = +document.querySelector('#children').value;
// Get the type of trip
const isPrivate = document.getElementById('private').checked;
const isWithAtv = document.getElementById('withatv').checked;        
// Calculate the specific charge per type of user and type of trip
const adultTripPrice = isPrivate ? privateAdultPrice : sharedAdultPrice;
const childrenTripPrice = isPrivate ? privateChildrenPrice : sharedChildrenPrice;
// Calculate the specific charge per type of user and the vehicule
const adultVehiclePrice = isWithAtv ? withAtvAdultPrice : noAtvPrice;
const childrenVehiclePrice = isWithAtv ? withAtvChildrenPrice : noAtvPrice;      
// Finally, do the maths
const adultPrice = adults * (adultTripPrice + adultVehiclePrice)
const childrenPrice = children * (childrenTripPrice + childrenVehiclePrice)
// return the value
return adultPrice + childrenPrice;                  
}
function updateTotal() {
const total = calculateTotal();
console.log(total);
document.querySelector('#totalPrice').innerHTML = total;
}

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