为什么以上代码获取不到text框的值

<div id="业务编码" class="TextBox-wrap">
            <span>业务编码 :</span>
            <input type="text" id="查询条件-订单" class="TextBox" caption="订单"
                   xpath="query#/eFreightService/ServiceData/order/ordercode">
        </div>

var destinationCity=$("#查询条件-订单");
            alert(destinationCity.value);