js监听html页面的上下滚动事件方法
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2022-06-12 19:59:24
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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<title>Dome</title>
<script type="text/javascript">
function scroll(){
//console.log("打印log日志");实时看下效果
console.log("开始滚动！");
}
var scrollFunc = function (e) {
e = e || window.event;
if (e.wheelDelta) { //第一步：先判断浏览器IE，谷歌滑轮事件
if (e.wheelDelta > 0) { //当滑轮向上滚动时
console.log("滑轮向上滚动");
}
if (e.wheelDelta < 0) { //当滑轮向下滚动时
console.log("滑轮向下滚动");
}
} else if (e.detail) { //Firefox滑轮事件
if (e.detail> 0) { //当滑轮向上滚动时
console.log("滑轮向上滚动");
}
if (e.detail< 0) { //当滑轮向下滚动时
console.log("滑轮向下滚动");
}
}
}
//给页面绑定滑轮滚动事件
if (document.addEventListener) {//firefox
document.addEventListener('DOMMouseScroll', scrollFunc, false);
}
//滚动滑轮触发scrollFunc方法 //ie 谷歌
window.onmousewheel = document.onmousewheel = scrollFunc;
</script>
</head>
<body onscroll="scroll()">
<div style="height: 2000px;background-color: aqua;"></div>
</body>
</html>