JS生成随机数
随机数min代码和阅读代码如下:
<html> <head> <title>randValue</title> <meta name="viewport" content="width=device-width,minimum-scale=1.0,maximum-scale=1.0,user-scalable=no"/> <script language="javascript"> maxN=6; function show(){ document.getElementById("msg").innerHTML=(msg.innerHTML=="?"?Math.ceil(Math.random()*maxN):"?"); } function set(){ maxN=parseInt(prompt("Please set the maximum value.","6")); if(isNaN(maxN)){ maxN=6; alert("Wrong number,using 6 instead."); } } </script> <style type="text/css"> .stbig { font-size: 128px; font-weight: bold; } </style> </head> <body bgcolor="FFCCFF"><br><br> <p align="center" class="stbig" id="msg" onClick="show()">?</p> <h1 align="center" onClick="set()">Setting</h1> </body> </html>
随机验证码代码如下(len值可改):
posted on 2020-08-10 20:39 Leisureeen 阅读(167) 评论(0) 编辑 收藏 举报