点击添加无用，多试几次有时候会有无法显示图片的黑框
官方代码如下
<!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">
<title>默认点标记</title>
<link rel="stylesheet" href="https://a.amap.com/jsapi_demos/static/demo-center/css/demo-center.css"/>
<style>
html, body, #container {
height: 100%;
width: 100%;
}
.amap-icon img,
.amap-marker-content img{
width: 25px;
height: 34px;
}
.marker {
position: absolute;
top: -20px;
right: -118px;
color: #fff;
padding: 4px 10px;
box-shadow: 1px 1px 1px rgba(10, 10, 10, .2);
white-space: nowrap;
font-size: 12px;
font-family: "";
background-color: #25A5F7;
border-radius: 3px;
}
.input-card{
width: 18rem;
z-index: 170;
}
.input-card .btn{
margin-right: .8rem;
}
.input-card .btn:last-child{
margin-right: 0;
}
</style>
</head>
<body>
<div id="container"></div>
<div class="input-card">
<label style="color:grey">点标记操作</label>
<div class="input-item">
<input id="addMarker" type="button" class="btn" onclick="addMarker()" value="添加点标记">
<input id="updateMarker" type="button" class="btn" onclick="updateIcon()" value="更新点标记图标">
</div>
<div class="input-item">
<input id="clearMarker" type="button" class="btn" onclick="clearMarker()" value="删除点标记">
<input id="updateMarker" type="button" class="btn" onclick="updateContent()" value="更新点标记内容">
</div>
</div>
<script type="text/javascript"
src="https://webapi.amap.com/maps?v=1.4.15&key=此处我用了自己的KEY"></script>
<script type="text/javascript">
var marker, map = new AMap.Map("container", {
resizeEnable: true,
center: [116.397428, 39.90923],
zoom: 13
});
// 实例化点标记
function addMarker() {
marker = new AMap.Marker({
icon: "//a.amap.com/jsapi_demos/static/demo-center/icons/poi-marker-default.png",
position: [116.406315,39.908775],
offset: new AMap.Pixel(-13, -30)
});
marker.setMap(map);
}
function updateIcon() {
marker.setIcon('//a.amap.com/jsapi_demos/static/demo-center/icons/poi-marker-red.png')
}
function updateContent() {
if (!marker) {
return;
}
// 自定义点标记内容
var markerContent = document.createElement("div");
// 点标记中的图标
var markerImg = document.createElement("img");
markerImg.className = "markerlnglat";
markerImg.src = "//a.amap.com/jsapi_demos/static/demo-center/icons/poi-marker-red.png";
markerContent.appendChild(markerImg);
// 点标记中的文本
var markerSpan = document.createElement("span");
markerSpan.className = 'marker';
markerSpan.innerHTML = "Hi，我被更新啦！";
markerContent.appendChild(markerSpan);
marker.setContent(markerContent); //更新点标记内容
marker.setPosition([116.391467, 39.927761]); //更新点标记位置
}
// 清除 marker
function clearMarker() {
if (marker) {
marker.setMap(null);
marker = null;
}
}
</script>
</body>
</html>
