地图 JS 学习笔记1
地图的销毁与创建
创建、销毁地图
<!doctype html>
<html>
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="initial-scale=1.0, user-scalable=no, width=device-width">
<link rel="stylesheet" href="https://a.amap.com/jsapi_demos/static/demo-center/css/demo-center.css" />
<style>
html,
body,
#container {
width: 100%;
height: 100%;
}
</style>
<title>地图创建与销毁</title>
</head>
<body>
<div id="container"></div>
<div class="input-card" style="width:16rem">
<h4>创建、销毁地图</h4>
<div id="btns">
<div class="input-item">
<button id="create-btn" class="btn" style="margin-right:1rem;">创建地图</button>
<button id="destroy-btn" class="btn">销毁地图</button>
</div>
</div>
</div>
<script src="https://webapi.amap.com/maps?v=1.4.15&key=您申请的key值"></script>
<script src="https://a.amap.com/jsapi_demos/static/demo-center/js/demoutils.js"></script>
<script>
var map = null;
function createMap() {
map = new AMap.Map('container', {
resizeEnable: true
});
log.success("创建地图成功");
}
function destroyMap() {
map && map.destroy();
log.info("地图已销毁");
}
//初始化地图
createMap();
//绑定创建、销毁事件
document.querySelector("#create-btn").onclick = createMap;
document.querySelector("#destroy-btn").onclick = destroyMap;
</script>
</body>
</html>
标注： js写的非常好，要学习写法，顺序，起名，思想。
var map = null; ---------→ 两个方法 ---------→createMap(); //初始化地图 ---------→document.querySelector("#create-btn").onclick = createMap;
document.querySelector("#destroy-btn").onclick = destroyMap;//绑定创建、销毁事件