1.demo例子说明
<script type="text/javascript">
var gDivId; //js全局变量
function geocoder(lastLon,lastLat,result) {
alert("lastLon:"+lastLon);
alert("lastLat:"+lastLat);
alert("result:"+result);
gDivId = result; //赋值给全局变量
}
function testff(){
alert("gDivId: " + gDivId); //读取全局变量
}
</script>
<input type="button" value="逆地理编码" onclick="geocoder(1212,3434,'test')"/> <input type="button" value="全局变量" onclick="testff()"/>
2.应用在高德地图中，根据经纬度来查询地址信息
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=gb2312" /> <title>无标题文档</title> <script type="text/javascript" src="http://webapi.amap.com/maps?v=1.3&key=d94035ac264f0cc5b293199360ca0e1e"></script> </head> <body> <div id="iCenter" style="display:none;"></div> 121.432921, 31.196159 <div id="result"> </div> <input type="button" value="逆地理编码" onclick="geocoder('121.432921', '31.196159','result')"/> <script language="javascript"> var mapObj; var gDivId; function geocoder(lastLon,lastLat,result) { gDivId = result; //赋值给全局变量 //已知点坐标 var lnglatXY = new AMap.LngLat(lastLon,lastLat); mapObj = new AMap.Map("iCenter", { view: new AMap.View2D({ center:new AMap.LngLat(lastLon,lastLat),//地图中心点 zoom:13 //地图显示的缩放级别 }) }); var MGeocoder; //加载地理编码插件 mapObj.plugin(["AMap.Geocoder"], function() { MGeocoder = new AMap.Geocoder({ radius: 1000, extensions: "all" }); //返回地理编码结果 AMap.event.addListener(MGeocoder, "complete", geocoder_CallBack); //逆地理编码 MGeocoder.getAddress(lnglatXY); }); //mapObj.setFitView(); } //回调函数 function geocoder_CallBack(data) { //返回地址描述 address = data.regeocode.formattedAddress; //返回结果拼接输出,需要Jquery的支持。 //$("#"+gDivId).html(address); document.getElementById(gDivId).innerHTML = address; } </script> </body> </html>