<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>无标题文档</title>
<script type="text/javascript">
window.onload = function ()
{
var odiv = document.getElementById('div1');
var obtn = document.getElementById('btn');
obtn.onclick = function ()
{
var number = randnew(35,7);
odiv.innerHTML = number;
history.pushState(number,'');
}
window.onpopstate = function (ev)
{
var number = ev.state||'';
odiv.innerHTML = number;
}
function randnew(alls,news)
{
var arr = [];
var newarr = [];
for(var i = 1; i <= alls; i++)
{
arr.push(i);
}
for( var i = 0; i < news; i++)
{
newarr.push(arr.splice(Math.floor(Math.random()*arr.length),1));
}
return newarr;
}
};
</script>
</head>
<body>
<input id="btn" type="button" value="35选7">
<div id="div1"></div>
</body>
</html>
