<!DOCTYPE HTML>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>无标题文档</title>
</head>
<body>
<img id="img1" src="img/2.jpg" width="200" />
<script>
var oImg = document.getElementById('img1');
var onOff = true; // 布尔值:true 1 false 0
oImg.onclick = function (){
// if( oImg.src == 'img/2.jpg' ){
// 有条件,就用现成的,如果没有,创造条件也得做事
if( onOff ){
oImg.src = 'img/4.jpg';
onOff = false;
} else {
oImg.src = 'img/2.jpg';
onOff = true;
}
};
</script>
</body>
</html>
JavaScript if判断切换图片
猜你喜欢
转载自blog.csdn.net/qq_37995109/article/details/85265780
今日推荐
周排行