<iframe frameborder="0" src="http://网址" class="iframe" frameborder="0" id="test" onload="this.height=100" width="762px"  scrolling="no"></iframe>

 

<script type="text/javascript">

 

function reinitIframe(){

 

var iframe = document.getElementById("test");

 

try{

 

var bHeight = iframe.contentWindow.document.body.scrollHeight;

 

var dHeight = iframe.contentWindow.document.documentElement.scrollHeight;

 

var height = Math.max(bHeight, dHeight);

 

iframe.height = height;

 

console.log(height);

 

}catch (ex){}

 

}

 

window.setInterval("reinitIframe()", 200);

 

</script>

 

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