By柏小白
jQuery实现购物车多物品数量的加减小计+总价计算
<!DOCTYPE html>
<html lang="zh-cn">
<head>
<meta charset="UTF-8">
<title>jQuery实现购物车多物品数量的加减小计+总价计算</title>
<script src="http://code.jquery.com/jquery-1.7.min.js"></script>
<script>
$.each($('input[class*=text_box]'),function(i,t){
subtotal($(t));
})
$(function(){
$(".add").click(function(){
var t=$(this).parent().find('input[class*=text_box]');
t.val(parseInt(t.val())+1);
if(isNaN(t.val())){
t.val(1);
}
subtotal(t)
});
$(".min").click(function(){
var t=$(this).parent().find('input[class*=text_box]');
t.val(parseInt(t.val())-1);
if(parseInt(t.val())<=0 || isNaN(t.val())){
t.val(1);
}
subtotal(t);
});
$('input[class*=text_box]').keyup(function(){
var t=$(this);
t.val(parseInt(t.val()));
if (isNaN(t.val()) || parseInt(t.val()) <= 0) {
t.val(1);
}
if (t.val(parseInt(t.val())) != t.val()) {
t.val(parseInt(t.val()));
}
subtotal(t);
});
function subtotal(sum){
var subtotal=0;
subtotal=parseFloat(sum.siblings('.price').text())*parseInt(sum.val());
sum.siblings('.subtotal').html(subtotal.toFixed(2));
setTotal();
}
function setTotal(){
var s=0;
$("#tab td").each(function(){
s+=parseInt($(this).find('input[class*=text_box]').val())*parseFloat($(this).find('span[class*=price]').text());
});
$("#total").html(s.toFixed(2));
}
setTotal();
});
</script></head>
<body>
<table id="tab">
<tr>
<td>
<span>单价:</span>
<span class="price">1.50</span>
<input class="min" name="" type="button" value="-" />
<input class="text_box" name="" type="text" value="1" />
<input class="add" name="" type="button" value="+" />
<span class="subtotal">1.50</span>
</td>
</tr>
<tr>
<td>
<span>单价:</span>
<span class="price">3.95</span>
<input class="min" name="" type="button" value="-" />
<input class="text_box" name="" type="text" value="1" />
<input class="add" name="" type="button" value="+" />
<span class="subtotal">3.95</span>
</td>
</tr>
</table>
<p>
总价：
<label id="total"></label>
</p>
</body>
</html>
|
单价: 1.50 1.50 |
|
单价: 3.95 3.95 |
总价：
柏小白 administrator
About the author