随机数
来源:互联网 发布:照片素描软件 编辑:程序博客网 时间:2024/06/06 03:39
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%><%String path = request.getContextPath();String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";%><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><html> <head> <base href="<%=basePath%>"> <title>抽奖</title> <meta http-equiv="pragma" content="no-cache"><meta http-equiv="cache-control" content="no-cache"><meta http-equiv="expires" content="0"> <meta http-equiv="keywords" content="keyword1,keyword2,keyword3"><meta http-equiv="description" content="This is my page"><!--<link rel="stylesheet" type="text/css" href="styles.css">--><script type="text/javascript">var flag = false;var flag1 = false;window.onload = function(){random();}function random(){document.getElementById("span1").innerHTML = Math.random(); //该方法产生一个0到1之间的浮点数。 document.getElementById("span2").innerHTML = Math.floor(Math.random()*10+1); //1-10 document.getElementById("span3").innerHTML = Math.floor(Math.random()*100);//0-99var arr = ["太阳光大、父母恩大、君子量大、小人气大","成功是优点的发挥,失败是缺点的累积","不要小看自己,因为人有无限的可能", "口说好话、心想好意、身行好事","原谅别人就是善待自己","手心向下是助人,手心向上是求人;助人快乐,求人痛苦"]; var index = Math.floor((Math.random()*arr.length)); document.getElementById("span4").innerHTML = arr[index];if(!flag){setTimeout(random,100);}}function stup(){if(!flag1){flag = true;flag1 = true;document.getElementById("stup").value = " 开始 ";}else{flag = false;flag1 = false;document.getElementById("stup").value = " 停止 ";random();}}</script> </head> <body> 0到1之间的浮点数: <span id = span1></span> <br /> 1到10之间的正整数:<span id = span2></span><br /> 0到99之间的正整数:<span id = span3></span><br /> <span id = span4></span><br /> <input id = "stup" type = "button" onclick="stup()" value = " 停止 "> </body></html>