jQuery实现购物车多物品数量的加减+总价计算
jquery实现购物车多物品数量的加减+总价计算代码如下:
<!doctype html public "-//w3c//dtd xhtml 1.0 transitional//en" "https://www.w3.org/tr/xhtml1/dtd/xhtml1-transitional.dtd">
<html xmlns="https://www.w3.org/1999/xhtml">
<head>
<title>jquery实现购物车多物品数量的加减+总价计算</title>
<script type="text/javascript" src="https://code.jquery.com/jquery-1.6.1.min.js"></script>
<script>
$(function(){
$(".add").click(function(){
var t=$(this).parent().find('input[class*=text_box]');
t.val(parseint(t.val())+1)
settotal();
})
$(".min").click(function(){
var t=$(this).parent().find('input[class*=text_box]');
t.val(parseint(t.val())-1)
if(parseint(t.val())<0){
t.val(0);
}
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="+" />
</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="+" />
</td>
</tr>
</table>
<p>总价：<label id="total"></label></p>
</body>
</html>