PHP-
返回顶部
<div id="a1">回到顶部</div>
<script>
document.getElementById('a1').onclick=function(){
scrollTo(0,0);
}
</script>
window.onload=function(){};加载完执行,
window.history.back();后退;
window.location.href=跳转页面;
实例:
<body>
<div id="a">aa</div>
<div id="b">后退</div>
<div id="c">百度</div>
</body>
<script>
//页面加载完成时
window.onload = function () {
document.getElementById('a').onclick = function () {
alert('hello');
}
}
document.getElementById('b').onclick = function () {
//后退按钮
window.history.back();
}
document.getElementById('c').onclick = function () {
//页面跳转
window.location.herf = 'http://www.baidu.com';
}
</script>

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