我知道经常会问这个问题,但我无法复制代码。我希望图像在一段时间后改变。我想我犯了很多错误的编码错误。以下是我的代码:
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>test</title>
<link rel="stylesheet" type="text/css" href="/css/styles.css">
</head>
<body>
<img id="image" src="foto1.jpg">
<script type = "text/javascript">
var image=document.getElementById("image");
function volgendefoto() {
if (images==0) {
image.src="foto2";
}
if (images==1) {
image.src="foto2";
}
if (images==3) {
image.src="foto1";
}
}
function timer(){
setInterval(volgendefoto, 3000);
}
var images= [], x = -1;
image[0]="foto1.jpg";
image[1]="foto2.jpg";
image[2]="foto3.jpg";
</script>
</body>
</html>
提前感谢您的帮助,
碧玉
答案 0 :(得分:5)
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>test</title>
<link rel="stylesheet" type="text/css" href="/css/styles.css">
</head>
<body>
<img id="image" src="foto1.jpg">
<script type = "text/javascript">
var image = document.getElementById("image");
var currentPos = 0;
var images = ["foto1.jpg", "foto2.jpg", "foto3.jpg"]
function volgendefoto() {
if (++currentPos >= images.length)
currentPos = 0;
image.src = images[currentPos];
}
setInterval(volgendefoto, 3000);
</script>
</body>
</html>
答案 1 :(得分:2)
您没有创建间隔,永远不会执行计时器。这是一个循环你的图片,假设你的第一张图片是预装的图片(例如:images[0] === image.src
页面加载):
const image=document.getElementById("image");
let images= ["foto1.jpg","foto2.jpg","foto3.jpg"], i = 0;
function volgendefoto() {
i<images.length?i+=1:i=0;
image.src=images[i];
}
setInterval(volgendefoto, 3000);