iframe几种常用代码片段

<iframe
        id="SGframe"
        src="外部文件名.html"
        frameborder="no"
        scrolling="no"
        style="display:block">
</iframe>

<!--全屏iframe设置-->
<iframe
        id="SGframe"
        src="https://720yun.com/t/f33jOzhkOm3?scene_id=3268173"
        frameborder="no"
        scrolling="no"
        width="100%"
        height="100%"
        style="display:block">
</iframe>
<!--
/*全屏样式设置才能让iframe全屏生效*/ 
html, body {
 height: 100%; 
 overflow: hidden; 
 margin: 0; 
 padding: 0; 
 }
-->

/*判断iframe是否加在完毕*/
onload = function () {
    let iframe = document.createElement("iframe");
    iframe.id = "ID名";
    iframe.src = "外部文件名.html";
    if (iframe.attachEvent) {
        iframe.attachEvent("onload", function () {
            //加载完毕
        });
    } else {
        iframe.onload = function () {
            //加载完毕
        };
    }
    document.body.appendChild(iframe);
};

/*判断当前页面没有被嵌入iframe就跳转到对应的首页*/ 
top.location === location && alert('被嵌入到了其他网页');