jQuery解析XML与传统JavaScript方法的对比

var xmlDoc = request.responseXML;
try // Build Markers, if available
{
 var markers = xmlDoc.getElementsByTagName("marker") ;
 for ( var i = 0; i < markers.length ; i++ ) {
  var point = {
   markers[i].getAttribute("lat")),
   markers[i].getAttribute("lng")
  };
 }
} catch(e) {}

$(request.responseXML).find("marker").each(function() {
 var marker = $(this);
 var point = {
  marker.attr("lat"),
  marker.attr("lng")
 };
});