应用错误收集

我必须创建一个自动灯光序列，我有一个会在点击一个按钮时改变，但我似乎无法让它自动工作。代码是：

<!DOCTYPE html>
<html>
<body>

<h1>JavaScript Task 3</h1>

<p>This is my Traffic Light script</p>

<img id="light" src="E:\A452\RED traffic light.jpg">

<button type="button" onclick="changeLights()">Change Lights</button>

<script>
var list = [
    
    "RED AMBER traffic light.jpg",
    "GREEN traffic light.jpg",
    "AMBER traffic light.jpg",
    "RED traffic light.jpg"

];

var index = 0;

function changeLights() {
    index = index + 1;

    if (index == list.length) index = 0;

    var image = document.getElementById('light');
    image.src=list[index];
}

</script>
</body>
</html>

Javascript中的自动交通灯序列

0 个答案: