$("#video").attr('src', idea(ads));
$(".heading").text(idea(ads));
var ads = ["https://youtu.be/nSZtxXNjmLA", "https://www.youtube.com/watch?v=D2pOkm4opVU"];
function idea(el) {
return el[Math.floor(Math.random() * el.length)];
}
所以我使用函数的想法随机化它。 iframe的视频ID为。
答案 0 :(得分:0)
1 - 将var ads
移至第一行
2 - 在你的html https://learn.jquery.com/about-jquery/how-jquery-works/
中链接jquery <script src="https://code.jquery.com/jquery-git.js"></script>
var ads = [
"youtu.be/nSZtxXNjmLA",
"youtube.com/watch?v=D2pOkm4opVU",
"youtu.be/WElPhX5Pb6I",
"youtu.be/78mNZeDaMtk"
];
$("#video").attr('src', idea(ads));
$(".heading").text(idea(ads));
function idea(el) {
return el[Math.floor(Math.random() * el.length)];
}
&#13;
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width">
<title>Demo</title>
</head>
<body>
<h1 class="heading"></h1>
<video src=""></video>
<script src="https://code.jquery.com/jquery-git.js"></script>
</body>
</html>
&#13;