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<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>随机数</title> </head> <body> <script type="text/javascript"> window.onload=function(){ MathRand(); var ss=document.getElementById(‘ss‘); ss.onclick=function(){ MathRand(); } } function MathRand() { var Num=""; for(var i=0;i<6;i++) { Num+=Math.floor(Math.random()*10); } document.getElementById("Lb_Random").innerText=Num; } </script> <div id="Lb_Random" style="width: 200px; height: 20px; background: red"></div> <button id="ss">更新</button> </body> </html>
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原文地址：http://www.cnblogs.com/oksite/p/4904552.html
