主题：百度人脸识别api-v3，能弄个例子么？

           function getLocation(){
               var options={
                   enableHighAccuracy:true, 
                   maximumAge:1000
               }
               if(navigator.geolocation){
                   //浏览器支持geolocation
                   navigator.geolocation.getCurrentPosition(onSuccess,onError,options);
                   
               }else{
                   //浏览器不支持geolocation
               }
           }

           //成功时
           function onSuccess(position){
               //返回用户位置
               //经度
               var longitude =position.coords.longitude;
               //纬度
               var latitude = position.coords.latitude;
               alert("成功"); 
        alert(longitude + "   " + latitude);
           }
 

           //失败时
           function onError(error){
               switch(error.code){
                   case 1:
                   alert("位置服务被拒绝");
                   break;

                   case 2:
                   alert("暂时获取不到位置信息");
                   break;

                   case 3:
                   alert("获取信息超时");
                   break;

                   case 4:
                    alert("未知错误");
                   break;
               }

           }

           getLocation();