随机图片展示器 - 点击获取随机图片 - 常规

<!DOCTYPE html>
<html>
<head>
	<title>随机显示图片</title>
	<script>
		function displayImage() {
			var imageArray = ['photo/image1.jpg', 'photo/image2.jpg', 'photo/image3.jpg', 'photo/image4.jpg', 'photo/image5.jpg'];
			var randomIndex = Math.floor(Math.random() * imageArray.length);
			document.getElementById('imageDisplay').src = imageArray[randomIndex];
		}
	</script>
</head>
<body>
	<h1>随机显示图片</h1>
	<button onclick="displayImage()">点击显示图片</button>
	<br><br>
	<img id="imageDisplay">
</body>
</html>