通过百度地图把经纬度转化成城市名

// 百度地图API功能
var map &＃61; new BMap.Map("allmap");
var point &＃61; new BMap.Point(116.331398,39.897445);
var gc &＃61; new BMap.Geocoder();
gc.getLocation(point, function(rs){var addComp &＃61; rs.addressComponents;alert(addComp.province &＃43; ", " &＃43; addComp.city &＃43; ", " &＃43; addComp.district &＃43; ", " &＃43; addComp.street &＃43; ", " &＃43; addComp.streetNumber);
});