猜数字
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<script type="text/javascript">
var random = Math.random()*100;
var num = prompt("请输入1~100的数字：",0);
if(num > random){
alert('你猜的数字太大了!');
}
else if(num < random)
alert('你猜的数字太小了!');
else if(num == random){
alert('恭喜你,猜对了!');
}
</script>
</head>
</html>
