怎样能实现点击某链接时网页由上向下移动到最底层?该怎么处理

怎样能实现点击某链接时网页由上向下移动到最底层?
怎样能实现点击某链接时网页由上向下移动到最底层?

[解决办法]
<script language= "JavaScript " defer= "defer ">
var tid;
function doclick(){
tid = setInterval(doscroll,10);
}
function doscroll(){
if(document.body.scrollTop <(document.body.scrollHeight-document.body.clientHeight)){
document.body.scrollTop += 10;
}
else{
if(tid!=null) {clearInterval(tid); tid=null;}
}
}
</script>

<body>
<input type= "button " onclick= "doclick(); " value= "Click "/> 
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</body>

怎样能实现点击某链接时网页由上向下移

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