ideacco/index.html

## index.html
<!DOCTYPE html>
<html lang="en">
<head>
	<meta charset="UTF-8">
	<title>Document</title>
</head>
<body>
	<div style="width: 200px;height: 400px;background-color: blue"><button onclick="test()">点击触发</button><h2>子页面效果</h2></div>
	<script type="text/javascript">
	var scriptURL = 'https://www.googletagmanager.com/gtag/js?id=UA-104793185-3';
	var script = document.createElement('script');
    script.async = true;
    script.src = scriptURL;
    (window.parent.document.getElementsByTagName('head')[0] || window.parent.document.getElementsByTagName('body')[0]).appendChild(script);

    function test(){
    	    var obj= window.parent.document.getElementById('objId')
    	    console.log('子框架',obj)
    }
	</script>
</body>
</html>

## jstest.html
<!DOCTYPE html>
<html lang="en">
<head>
	<meta charset="UTF-8">
	<title>Document</title>
</head>
<body>
	<div id="objId"><h1>一个测试</h1></div>

	<iframe src="./index.html"></iframe>

<!-- 	<script type="text/javascript">
	var scriptURL = 'https://sdks.shopifycdn.com/buy-button/latest/buy-button-storefront.min.js';
	var script = document.createElement('script');
    script.async = true;
    script.src = scriptURL;
    (document.getElementsByTagName('head')[0] || document.getElementsByTagName('body')[0]).appendChild(script);
	</script> -->


</body>
</html>
	<!DOCTYPE html>
	<html lang="en">
	<head>
	<meta charset="UTF-8">
	<title>Document</title>
	</head>
	<body>
	<div style="width: 200px;height: 400px;background-color: blue"><button onclick="test()">点击触发</button><h2>子页面效果</h2></div>
	<script type="text/javascript">
	var scriptURL = 'https://www.googletagmanager.com/gtag/js?id=UA-104793185-3';
	var script = document.createElement('script');
	script.async = true;
	script.src = scriptURL;
	(window.parent.document.getElementsByTagName('head')[0] \|\| window.parent.document.getElementsByTagName('body')[0]).appendChild(script);

	function test(){
	var obj= window.parent.document.getElementById('objId')
	console.log('子框架',obj)
	}
	</script>
	</body>
	</html>