ajax 跨域请求

 Var urlLocation="http://api.map.baidu.com/geoconv/v1/?coords="+coords+"&from=3&to=5&ak= 自己的ak&callback=callbackLocation"
                  $.ajax({
                      type:"get",
                      url:urlLocation,
                      jsonp:"callback",
                      dataType: "jsonp",
                      jsonp: "callback",
                      success:function(data){
                          if(data.status==0){
                              var point =new BMap.Point(data.result[0].x,data.result[0].y);
                                  marker = new BMap.Marker(point);
                                 // map.addOverlay(marker);
                                  map.panTo(point);
                          }else{
                              alert(data);
                          }
                      }
                });