<!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>
</head>
<body>
</body>
<script type="text/javascript">
//篮球弹起高度
var a=10;
for(i=0;i<10;i++)
{
a=a*0.3
alert(a);
}
//棋盘放芝麻
var a=1;
var b=1;
for(var i=1;i<32;i++)
{a=a*2
b=a+b
}
var c=b*0.00001;
alert(c);
</script>
</html>