标签：har else style == timer app div max int
<html> <head> <meta charset="UTF-8"> <SCRIPT LANGUAGE="JavaScript"> var maxtime = 15*15 //半个小时，按秒计算，自己调整! function CountDown(){ if(maxtime>=0){ minutes = Math.floor(maxtime/15); seconds = Math.floor(maxtime%15); msg = "距离结束还有"+minutes+"分"+seconds+"秒"; document.all["timer"].innerHTML=msg; if(maxtime == 5*15) alert(‘注意，还有5分钟!‘); --maxtime; } else{ clearInterval(timer); alert("时间到，结束!"); } } timer = setInterval("CountDown()",1000); </SCRIPT> <style> #timer{ position: absolute; left:100px; height:100px; } </style> </head> <body background="img/11141_03.jpg" style=" background-repeat:no-repeat ; background-size:100% 100%; background-attachment: fixed;" > <div id="timer" style="color:red"></div> </body> </html>
原文：乔兔兔HAPPYhttps://zhidao.baidu.com/question/548712347.html
标签：har else style == timer app div max int
原文地址：https://www.cnblogs.com/minxiaofei/p/10102189.html
