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1、问题背景
在一个界面，同时展示不同城市地图分布情况
2、实现源码
<!DOCTYPE html>
<html>
<head>
<title>同时加载四张地图</title>
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="this is my page">
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<meta name="viewport" content="initial-scale=1.0, user-scalable=no" />
<script type="text/javascript" src="http://api.map.baidu.com/api?v=2.0&ak=ak密钥"></script>
<style>
body, html {
width: 100%;
height: 100%;
overflow: hidden;
margin:0;
font-family:"微软雅黑";
}
#container1{
width:50%;
height:50%;
float:left;
overflow: hidden;
margin:5;
}
#container2{
width:50%;
height:50%;
float:right;
overflow: hidden;
margin:5;
}
#container3{
width:50%;
height:50%;
float:left;
overflow: hidden;
margin:5;
}
#container4{
width:50%;
height:50%;
float:right;
overflow: hidden;
margin:5;
}
#map1{
margin:0 0 3px;
height:100%;
}
#map2{
margin:3px 0 0;
height:100%;
}
#map3{
margin:3px 0 0;
height:100%;
}
#map4{
margin:3px 0 0;
height:100%;
}
</style>
</head>
<body>
<div id="container1">
<div id="map1"></div>
</div>
<div id="container2">
<div id="map2"></div>
</div>
<div id="container3">
<div id="map3"></div>
</div>
<div id="container4">
<div id="map4"></div>
</div>
</body>
</html>
<script type="text/javascript">
//加载第一张地图
var map1 = new BMap.Map("map1");
var point1 = new BMap.Point(114.309531, 30.59619);
map1.centerAndZoom(point1,15);
map1.enableScrollWheelZoom();
//加载第二张地图
var map2 = new BMap.Map("map2"); // 创建Map实例
var point2 = new BMap.Point(106.554865,29.569238);
map2.centerAndZoom(point2,15);
map2.enableScrollWheelZoom(); //启用滚轮放大缩小
//加载第二张地图
var map3 = new BMap.Map("map3"); // 创建Map实例
var point3 = new BMap.Point(118.797717,32.064001);
map3.centerAndZoom(point3,15);
map3.enableScrollWheelZoom();
//加载第二张地图
var map4 = new BMap.Map("map4"); // 创建Map实例
var point4 = new BMap.Point(121.476788,31.236058);
map4.centerAndZoom(point4,15);
map4.enableScrollWheelZoom();
</script>
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原文地址：http://blog.csdn.net/you23hai45/article/details/51344541
