百度API中怎样根据起点与终点来查询路线，代码是下面的，为啥点击查询没反应

html>

<br> body, html {width: 100%;height: 100%; margin:0;font-family:&quot;微软雅黑&quot;;}<br> #allmap{height:500px;width:100%;}<br> #r-result,#r-result table{width:100%;}<br>


根据起终点名称驾车导航


.qmbox body,.qmbox html{width: 100%;height: 100%;margin:0;font-family:&quot;微软雅黑&quot;;}<br> .qmbox #allmap{height:700px;width:100%;}<br> .qmbox #r-result{width:100%; font-size:14px;}<br>

<div id="allmap"></div>
<div id="r-result">
    起点: <input id="start" type="text" style="width:100px; margin-right:10px;"  />
    终点: <input id="end" type="text" style="width:100px; margin-right:10px;"  />
    <input type="button" value="查询"  />
</div>

用chrome浏览器,按f12然后点击查询,选择Console,看报错.

<br> body, html {width: 100%;height: 100%; margin:0;font-family:&quot;微软雅黑&quot;;}<br> #allmap{height:500px;width:100%;}<br> #r-result,#r-result table{width:100%;}<br>


根据起终点名称驾车导航


.qmbox body,.qmbox html{width: 100%;height: 100%;margin:0;font-family:&quot;微软雅黑&quot;;}<br> .qmbox #allmap{height:700px;width:100%;}<br> .qmbox #r-result{width:100%; font-size:14px;}<br>

<div id="allmap"></div>
<div id="r-result">
    起点: <input id="start" type="text" style="width:100px; margin-right:10px;"  />
    终点: <input id="end" type="text" style="width:100px; margin-right:10px;"  />
    <input type="button" value="查询"  />
</div>

// 百度地图API功能 var map = new BMap.Map("allmap"); var start = ""; var end = ""; map.centerAndZoom(new BMap.Point(110.79, 32.65), 11); $("#result").click(function(){ map.clearOverlays(); var i=$("#driving_way select").val(); search(start,end,routePolicy[i]); function search(start,end,route){ var driving = new BMap.DrivingRoute(map, {renderOptions:{map: map, autoViewport: true},policy: route}); driving.search(start,end); } });