我對JavaScript很陌生,我無法弄清楚如何使這段代碼工作。我有一個HTML頁面和一個Javascript頁面。我試圖讓按鈕正常工作,但我甚至無法使顏色更改工作。我在哪裏錯了?我沒有正確鏈接文件嗎?初次使用Javascript,顏色變化
HTML:
<!DOCTYPE html>
<html>
<head>
<title>JavaScript practice</title>
<!-- <script type="text/javascript"
src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.1.0/jquery.min.js">
</script> -->
<script type="text/javascript" src="javascript.js"></script>
</head>
<body>
<p>Press the buttons to change the box!</p>
<div id="box" style="height:150px; width:150px; background-color:orange; margin:25px"></div>
<button id="button1">Grow</button>
<button id="button2">Blue</button>
<button id="button3">Fade</button>
<button id="button4">Reset</button>
</body>
</html>
Javascript:
document.getElementById("button2").addEventListener("click", function(){
document.getElementById("box").style.backgroundColor = "blue";
})
是您的JavaScript文件在同一目錄作爲HTML文件添加類onClick事件? –