百度地图 根据经纬度 定位
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<meta name="viewport" content="initial-scale=1.0, user-scalable=no" />
<style type="text/css">
body, html{width: 100%;height: 100%;margin:0;font-family:"微软雅黑";}
#allmap{height:500px;width:100%;}
#r-result{width:100%; font-size:14px;}
</style>
<script type="text/javascript" src="http://api.map.baidu.com/api?v=2.0&ak=您的**"></script>
<title>城市名定位</title>
</head>
<body>
<div id="allmap"></div>
<div id="r-result">
经度: <input id="longitude" type="text" style="width:100px; margin-right:10px;" />
纬度: <input id="latitude" type="text" style="width:100px; margin-right:10px;" />
<input type="button" value="查询" onclick="theLocation()" />
</div>
</body>
</html>
<script type="text/javascript">
// 百度地图API功能
var map = new BMap.Map("allmap");
map.centerAndZoom(new BMap.Point(116.331398,39.897445),11);
map.enableScrollWheelZoom(true);
// 用经纬度设置地图中心点
function theLocation(){
if(document.getElementById("longitude").value != "" && document.getElementById("latitude").value != ""){
map.clearOverlays();
var new_point = new BMap.Point(document.getElementById("longitude").value,document.getElementById("latitude").value);
var marker = new BMap.Marker(new_point); // 创建标注
map.addOverlay(marker); // 将标注添加到地图中
map.panTo(new_point);
}
}
</script>