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Javascript infobox.prototype=new google.maps.overlayview()错误,未定义google_Javascript_Jquery_Html_Google Maps - Fatal编程技术网

Javascript infobox.prototype=new google.maps.overlayview()错误,未定义google

Javascript infobox.prototype=new google.maps.overlayview()错误,未定义google,javascript,jquery,html,google-maps,Javascript,Jquery,Html,Google Maps,嗨,我在infobox.js中看到了“google未定义”这个错误,并显示错误在 infobox.prototype = new google.maps.overlayview() 这是我的HTML代码,希望我包括正确的库 <!DOCTYPE html> <html> <head> <link rel="stylesheet" type="text/css" href="style.css"> </head> <body>

嗨,我在infobox.js中看到了“google未定义”这个错误,并显示错误在

infobox.prototype = new google.maps.overlayview()
这是我的HTML代码,希望我包括正确的库

<!DOCTYPE html>
<html>
<head>
<link rel="stylesheet" type="text/css" href="style.css">
</head>
<body>
<div id="map"></div> 
<script async defer src="https://maps.googleapis.com/maps/api/js?key=AIzaSyB9Mpf-bWJn8ym13pLnRdHSNHymRrvOuiw&callback=initMap">
</script>
<script src="library/infobox.js" type="text/javascript"></script> 
<script src="script.js"></script>  
</body>
</html>

我在script.js文件中调用了GoogleMapAPI和infobox.js。
提前谢谢

调用OverlayView构造函数时,仍未加载google地图。不使用异步、延迟和回调调用它:

<script src="https://maps.googleapis.com/maps/api/js?key=AIzaSyB9Mpf-bWJn8ym13pLnRdHSNHymRrvOuiw"></script>


因此,它是区分大小写的:
infobox.prototype=new google.maps.OverlayView()

当您调用OverlayView构造函数时,仍然没有加载google地图。不使用异步、延迟和回调调用它:

<script src="https://maps.googleapis.com/maps/api/js?key=AIzaSyB9Mpf-bWJn8ym13pLnRdHSNHymRrvOuiw"></script>


因此,它是区分大小写的:
infobox.prototype=new google.maps.OverlayView()

同时具有
async
defer
是无效的HTML。您应该这样做。同时具有
async
defer
是无效的HTML。您应该这样做。