jQuery商品数量加减并计算总价代码

</style>
<div class="p_number">
<div style="height:36px;font-size:16px;">商品单价：<strong id="price_item_1">￥350.00</strong></div>
<div class="f_l add_chose">
<a class="reduce" onClick="setAmount.reduce('#qty_item_1')" href="javascript:void(0)">
-</a>
<input type="text" name="qty_item_1" value="1" id="qty_item_1" onKeyUp="setAmount.modify('#qty_item_1')" class="text" />
<a class="add" onClick="setAmount.add('#qty_item_1')" href="javascript:void(0)">
+</a>
</div>
<div class="f_l buy">
总价：<span class="total-font" id="total_item_1">￥89.00</span>
<input type="hidden" name="total_price" id="total_price" value="" />
<span class="jifen">购买商品可获得：<b id="total_points">18</b>积分</span>
</div>
</div>

jQuery商品数量加减并计算总价代码是一款类似淘宝商城增加减少商品件数特效，也可以在文本框直接输入数值，随着数量的改变计算出总价。