我有两个项目有点类似，一个需要具有类似功能。
其中一个基本上是table，产品为select，产品价格，您想要的产品数量（5,10，无论数量多少）。和产品的总价格。这样的多行。并在最后计算税收。
以下代码也位于fiddle。我通过Google找到的代码。它有点不完整，因为我一直磕磕绊绊地看不到我对JQuery的了解。
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<title>JSfiddle</title>
<script src="https://code.jquery.com/jquery-latest.min.js"></script>
<style type="text/css">
tr, th, td {
border: 1px solid #CCCCCC;
padding: 5px 10px;
}
table {
margin: 0px auto;
text-align: left;
}
.btw, .aantal {
text-align: center;
}
.aantal input {
width: 45px;
text-align: center;
}
.totaal {
text-align: center;
}
td {
max-width: 450px;
white-space: normal;
word-wrap: break-word;
}
</style>
<script>
$(document).ready(function(){
$("tr:nth-child(odd)").css("background-color", "#EEEEEE");
$("tr:nth-child(even)").css("background-color", "#F9F9F9");
});
$(function(){
$('input[name=aantal]').change(function(){
$('#select').text($(this).val());
});
$('#element_1').bind('keydown keyup keypress', function(){
$('#advertiserNameDisplay').html($(this).val());
});
$('#element_2').bind('keydown keyup keypress', function(){
$('#adImageDisplay').text($(this).val());
});
$('#element_3').bind('keydown keyup keypress', calcPrice);
function calcPrice(){
var months = parseInt($('#element_3').val());
if (!isNaN(months)){
var rate = 1;
if (months >= 1 && months < 3){
rate = 199;
}else if (months >= 3 && months < 6){
rate = 175;
}else{
rate = 150;
}
var price = rate * months;
$('#rate').text(rate);
$('#months').text(months);
$('#total').text(price);
}else{
$('#months').text('-');
}
}
calcPrice();
});
</script>
</head>
<body>
<table>
<tr>
<th>article</th>
<th>Description</th>
<th>tax</th>
<th>price €</th>
<th>amount</th>
<th>total price</th>
</tr>
<tr>
<td class="article">XXXXX</td>
<td class="Description">
<select name="products">
<option value="One">Product One</option>
<option value="Two">Product Two</option>
<option value="Three">Product Three</option>
<option value="Four">Product Four</option>
<option value="Five">Product Five</option>
</select>
</td>
<td class="tax">6</td>
<td class="price">€ 4.0</td>
<td class="amount"><input name="amount" value="" min="1" max="5" type="number"></td>
<td class="total">€ 0.00</td>
</tr>
<tr>
<td class="article">XXXXX</td>
<td class="Description">A Product</td>
<td class="tax">6</td>
<td class="price">€ 4.0</td>
<td class="amount"><input name="amount" value="" type="number"></td>
<td class="total">€ 0.00</td>
</tr>
<tr>
<td class="article">XXXXX</td>
<td class="Description">A Product</td>
<td class="tax">6</td>
<td class="price">€ 4.0</td>
<td class="amount"><input name="amount" value="" type="number"></td>
<td class="total">€ 0.00</td>
</tr>
<tr>
<td class="article">XXXXX</td>
<td class="Description">A Product</td>
<td class="tax">6</td>
<td class="price">€ 4.0</td>
<td class="amount"><input name="amount" value="" type="number"></td>
<td class="total">€ 0.00</td>
</tr>
<tr>
<td class="article">XXXXX</td>
<td class="Description">A Product</td>
<td class="tax">6</td>
<td class="price">€ 4.0</td>
<td class="amount"><input name="amount" value="" type="number"></td>
<td class="total">€ 0.00</td>
</tr>
<tr>
<td class="article">XXXXX</td>
<td class="Description">A Product</td>
<td class="tax">6</td>
<td class="price">€ 4.0</td>
<td class="amount"><input name="amount" value="" type="number"></td>
<td class="total">€ 0.00</td>
</tr>
<tr>
<td class="article">XXXXX</td>
<td class="Description">A Product</td>
<td class="tax">6</td>
<td class="price">€ 4.0</td>
<td class="amount"><input name="amount" value="" type="number"></td>
<td class="total">€ 0.00</td>
</tr>
<tr>
<td class="article">XXXXX</td>
<td class="Description">A Product</td>
<td class="tax">6</td>
<td class="price">€ 4.0</td>
<td class="amount"><input name="amount" value="" type="number"></td>
<td class="total">€ 0.00</td>
</tr>
<tr>
<td class="article">XXXXX</td>
<td class="Description">A Product</td>
<td class="tax">6</td>
<td class="price">€ 4.0</td>
<td class="amount"><input name="amount" value="" type="number"></td>
<td class="total">€ 0.00</td>
</tr>
<tr>
<td class="article">XXXXX</td>
<td class="Description">A Product</td>
<td class="tax">6</td>
<td class="price">€ 4.0</td>
<td class="amount"><input name="amount" value="" type="number"></td>
<td class="total">€ 0.00</td>
</tr>
<tr>
<td class="article">XXXXX</td>
<td class="Description">A Product</td>
<td class="tax">6</td>
<td class="price">€ 4.0</td>
<td class="amount"><input name="amount" value="" type="number"></td>
<td class="total">€ 0.00</td>
</tr>
<tr>
<td class="article">XXXXX</td>
<td class="Description">A Product</td>
<td class="tax">6</td>
<td class="price">€ 4.0</td>
<td class="amount"><input name="amount" value="" type="number"></td>
<td class="total">€ 0.00</td>
</tr>
<tr>
<td></td>
<td></td>
<td></td>
<td>amount</td>
<td>0</td>
<td></td>
</tr>
<tr>
<td>Different delivery address:</td>
<td>A adres</td>
<td></td>
<td>Subtotal</td>
<td>0</td>
<td></td>
</tr>
<tr>
<td></td>
<td>
<b>128 packages per pallet</b>
</td>
<td></td>
<td>extra cost*:</td>
<td>0</td>
<td></td>
</tr>
<tr style="border: 0px none; ">
<td style="border: 0px none;">payment Bank</td>
<td>payment 10%</td>
<td></td>
<td>tax 6%</td>
<td>0</td>
<td></td>
</tr>
<tr style="border: 0px none; ">
<td style="border: 0px none;"></td>
<td>AFTER PAYMENT 90%</td>
<td></td>
<td>total</td>
<td><span id="select">x</span></td>
<td></td>
</tr>
<tr style="border: 0px none; ">
<td></td>
<td></td>
<td></td>
<td>payment 10%</td>
<td>0</td>
<td></td>
</tr>
<tr>
<td>extra cost</td>
<td></td>
<td></td>
<td>AFTER PAYMENT 90%</td>
<td>0</td>
<td></td>
</tr>
<tr>
<td>comments</td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr>
<td></td>
<td></td>
<td></td>
<td></td>
<td>0</td>
<td></td>
</tr>
</tbody></table>
</body>
</html>
正如您可以看到它像xls文件一样sum。但是，我不知道该怎么做。在进行计算时，我的JQuery并不是那么好。
非常感谢任何帮助！