我在搞乱JavaScript,我想要一个带有3个链接的彩色方块,根据我点击的链接,方块会改变颜色。我无法让它工作,我不确定我哪里出错了..
索引.html
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>Test Page 2</title>
<script src="switch.js" type='text/javascript'></script>
</head>
<body>
<img id='square' src="img/blue.png"><br>
<a href="#" id='blue'>Blue!</a>
<a href='#' id='red'>Red!</a>
<a href='#' id='green'>Green!</a>
</body>
</html>
开关.js
var switch = (function() {
var red = document.body.getElementById('red');
var square = document.body.getElementById('square');
red.onclick = function() {
square.src = 'img/red.png';
}
})();