<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
</head>
<script>
window.onload=function(){
var oin=document.getElementById('input1');
var odiv=document.getElementById('div1');
var json={};
oin.onclick=function(){
/*随机获取num值*/
var num=Math.random();
/*获取随机7位数*/
var arr=randomNum(35,7);
/* 随机索引存arr随机7位数*/
json[num] =arr;
odiv.innerHTML=arr;
window.location.hash=num;
}
window.onhashchange=function(){
odiv.innerHTML=json[window.location.hash.substring(1)];
}
function randomNum(iAll,iNow)
{
var arr=[];
var newArr=[];
for(var i=1; i<iAll; i++){
arr.push(i);
}
for(var i=0; i<iNow; i++)
{
newArr.push(arr.splice(Math.floor(Math.random()*arr.length),1));
}
return newArr;
}
}
</script>
<body>
<input type="button" value="随机选择" id="input1">
<div id="div1"></div>
</body>
</html>
随机数组的的索引存值
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
</head>
<script>
window.onload=function(){
var oin=document.getElementById('input1');
var odiv=document.getElementById('div1');
oin.onclick=function(){
var arr=randomNum(35,7);
/*要存的数组*/
history.pushState(arr,'');
odiv.innerHTML=arr;
};
/*取数组的函数*/
window.onpopstate=function(ev)
{
odiv.innerHTML=ev.state;
}
function randomNum(iAll,iNow)
{
var arr=[];
var newArr=[];
for(var i=1; i<iAll; i++){
arr.push(i);
}
for(var i=0; i<iNow; i++)
{
newArr.push(arr.splice(Math.floor(Math.random()*arr.length),1));
}
return newArr;
}
}
</script>
<body>
<input type="button" value="随机选择" id="input1">
<div id="div1"></div>
</body>
</html>
此方法只适合在服务器上使用