js中，setInterval函数:setInterval(code,milliseconds,[可选参数])
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<title>Interval</title>
<style type="text/css">
html,body{
width: 100%; height: 100%;padding: 0; margin: 0;
}
</style>
</head>
<body>
<script type="text/javascript">
var i=1;
function myFun (str){
if(i%2===0){
console.log(str[1]);
}else{
console.log(str[0]);
}
if(++i>100){
cleartInterval(timer);
}
}
var timer=setInterval(myFun,1000,["单数","双数"]);
</script>
</body>
</html>
原文：http://www.cnblogs.com/mrGan/p/6530662.html