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我有以下代码来替换iframe的src以在每次加载页面时都有随机视频。但是页面只是继续加载并继续运行该功能。如何停止重复功能。如何停止重复加载
<div id="rightsugg"><iframe id="randomVideo" width="560" height="315" src="" onLoad="displayRandomVideo();" frameborder="0" allowfullscreen></iframe></div>
<script type="text/javascript">
function getRandomVideo() {
var videos = [
'https://www.youtube.com/embed/kiTO7c_qeZs',
'https://www.youtube.com/embed/z4Hfv00eqoI',
'https://www.youtube.com/embed/7cdZYQB5ONE',
'https://www.youtube.com/embed/i1gE3nyQnKg',
];
var video = videos[Math.floor(Math.random()*videos.length)];
return video;
}
function displayRandomVideo() {
var htmlVideo = document.getElementById("randomVideo");
htmlVideo.src = getRandomVideo();
}
displayRandomVideo();
</script>