版权声明：知末随未 https://blog.csdn.net/mo3408/article/details/89073128
要实现的效果：
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>地理位置</title>
</head>
<body>
<iframe id="mapPage" width="100%" height="800" frameborder=0
src="http://apis.map.qq.com/tools/locpicker?search=1&type=1&key=OB4BZ-D4W3U-B7VVO-4PJWW-6TKDJ-WPB77&referer=myapp">
</iframe>
</div>
<script type="text/javascript">
window.addEventListener('message', function(event) {
var loc = event.data;
if (loc && loc.module == 'locationPicker') {//
console.log('location', loc);
}
}, false);
</script>
</body>
</html>