百度地图api如何根据城市名或经纬度获取当前城市东西经南北纬范围 js

你好 我只有中的 省市联动 ··贴上代码 供你做参考吧

//省份数组

var shenArr=["请选择省份/城市","北京市","上海市","天津市","重庆市","香港特别行政区","澳门特别行政区","湖南","辽宁","河北","山东","河南","湖北","福建","四川","江西"];

//自定义下标（属性）

//shenArr["名称"]

shenArr["请选择省份/城市"]=["请选择城市/地区"];

shenArr["北京市"]=["北京市"];

shenArr["上海市"]=["上海市"];

shenArr["天津市"]=["天津市"];

shenArr["重庆市"]=["重庆市"];

shenArr["香港特别行政区"]=["香港特别行政区"];

shenArr["澳门特别行政区"]=["澳门特别行政区"];

shenArr["福建"]=["福州市","厦门市","泉州市","漳州市","南平市","三明市","龙岩市","莆田市"];

shenArr["湖南"]=["长沙市","株洲市","湘潭市","郴州市","益阳市","娄底市","衡阳市","常德市"];

shenArr["辽宁"]=["沈阳市","大连市","抚顺市","鞍山市","铁岭市","本溪市","丹东市","锦州市"];

shenArr["河北"]=["保定市","唐山市","邯郸市","邢台市","沧州市","衡水市","廊坊市","承德市"];

shenArr["山东"]=["济南市","青岛市","威海市","潍坊市","菏泽市","济宁市","莱芜市","烟台市"];

shenArr["河南"]=["洛阳市","焦作市","商丘市","信阳市","周口市","鹤壁市","安阳市","濮阳市"];

shenArr["湖北"]=["武汉市","荆门市","汉口市","咸宁市","襄樊市","荆州市","黄石市","孝感市"];

shenArr["江西"]=["南昌市","赣州市","上饶市","宜春市","吉安市","抚州市","萍乡市","九江市"];

$each(shenArr,function(i,val){

//添加下拉项

$("select[name=sheng]")append("<option value='"+val+"'>"+val+"</option>");

});

//市级下拉框绑定

$("select[name=sheng]")change(function(){

var index=$(this)val();

var shiArr=shenArr[index];

$("select[name=shi]")empty();

$each(shiArr,function(i,val){

//添加下拉项

$("select[name=shi]")append("<option value='"+val+"'>"+val+"</option>");

});

});

<select name="sheng"></select>&nbsp

<select name="shi">

<option>请选择城市/地区</option>

</select>

希望能帮到你 谢谢

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