<!doctype html> <html lang="zh-CN"> <head> <meta charset="utf-8" /> <meta name="viewport" content="width=device-width,initial-scale=1.0" /> <title>点击产生随机数</title> <script language="javascript"> window.onload = function(){ var arr = [‘135****8827‘,‘137****1621‘,‘135****5498‘ ];
//var index = Math.floor((Math.random()*arr.length));
var list = []; var oBtn = document.getElementById(‘btn‘); oBtn.onclick = function(){
//一开始把下面的这行代码放在了onclick的外面产生的数字都一样 var index = Math.floor((Math.random()*arr.length));
//将数据压入数组中， var count =list.push(arr[index]);
//控制台中显示 console.log(list);
}; } </script> <body> <button id="btn">点我</button> </body> </html>
原文：http://www.cnblogs.com/silences/p/5459005.html