<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>无标题文档</title> <script> //onhashchange : 事件：当hash值有变化的时候，就会触发 window.onload = function(){ var oInput = document.getElementById(‘input1‘); var oDiv = document.getElementById(‘div1‘); var obj = {}; oInput.onclick = function(){ var number = randomNum(35,7); oDiv.innerHTML = number; var oRD = Math.random(); obj[oRD] = number; window.location.hash = oRD; }; window.onhashchange = function(){ var number = obj[window.location.hash.substring(1)] || ‘‘; oDiv.innerHTML = number; }; function randomNum(alls,now){ var arr = []; var newArr = []; for(var i=1;i<=alls;i++){ arr.push(i); } for(var i=0;i<now;i++){ newArr.push( arr.splice(Math.floor(Math.random()*arr.length),1) ); } return newArr; } }; </script> </head> <body> <input type="button" value="35选7" id="input1" /> <div id="div1"></div> </body> </html>
原文：http://www.cnblogs.com/chiangyibo/p/7815485.html