<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Insert title here</title>
<script type="text/javascript">
//得到1-10的随机数
var x = parseInt(Math.random()*10)+1;
//alert(x);
function myfn(){
var d = document.getElementById("d1");
var i = document.getElementById("i1");
var num = parseInt(i.value);
if(num==x){
d.innerText="恭喜您 猜对了！";
}else if(num<x){
d.innerText="小了";
}else{
d.innerText="大了";
}
}
</script>
</head>
<body>
<p>猜猜看</p>
请输入1-10随机的一个数：<input type="text" id="i1">
<input type="button" value="猜-猜" onclick="myfn()">
<div id="d1"></div>
</body>
</html>
原文：https://www.cnblogs.com/xingsir/p/12809526.html