This is the simplest I could reduce it to:
(这是我可以简化为的最简单的方法：)
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="content-type" content="text/html; charset=UTF-8" />
<title>Google Maps Multiple Markers</title>
<script src="http://maps.google.com/maps/api/js?sensor=false"
type="text/javascript"></script>
</head>
<body>
<div id="map" style="width: 500px; height: 400px;"></div>
<script type="text/javascript">
var locations = [
['Bondi Beach', -33.890542, 151.274856, 4],
['Coogee Beach', -33.923036, 151.259052, 5],
['Cronulla Beach', -34.028249, 151.157507, 3],
['Manly Beach', -33.80010128657071, 151.28747820854187, 2],
['Maroubra Beach', -33.950198, 151.259302, 1]
];
var map = new google.maps.Map(document.getElementById('map'), {
zoom: 10,
center: new google.maps.LatLng(-33.92, 151.25),
mapTypeId: google.maps.MapTypeId.ROADMAP
});
var infowindow = new google.maps.InfoWindow();
var marker, i;
for (i = 0; i < locations.length; i++) {
marker = new google.maps.Marker({
position: new google.maps.LatLng(locations[i][1], locations[i][2]),
map: map
});
google.maps.event.addListener(marker, 'click', (function(marker, i) {
return function() {
infowindow.setContent(locations[i][0]);
infowindow.open(map, marker);
}
})(marker, i));
}
</script>
</body>
</html>
????? Edit/fork on a Codepen →
(a 在 Codepen上编辑/分叉→)
SCREENSHOT
(屏幕截图)
There is some closure magic happening when passing the callback argument to the addListener method.
(将回调参数传递给addListener方法时，发生了一些关闭魔术。)
This can be quite a tricky topic if you are not familiar with how closures work. (如果您不熟悉闭包的工作原理，那么这可能是一个棘手的话题。)
I would suggest checking out the following Mozilla article for a brief introduction if it is the case: (如果是这种情况，我建议您查看以下Mozilla文章以作简要介绍：)
? Mozilla Dev Center: Working with Closures
(?Mozilla 开发人员中心：处理闭包)
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