JavaScript 根据时间显示不同的提示信息，判断时间，然后定义不同的变量，显示于客户端。
代码如下：
<html>
<head>
<title>在不同的时间显示不同的提示信息</title>
</head>
<body>
<script language="javascript">
<!--
d = new Date();
hours = d.getHours();
document.write("现在的时间是：");
document.write(hours,"时")
document.write(d.getMinutes(),"分")
document.write(d.getSeconds(),"秒");
if(hours == 1)msg = "零晨一点了，别忘了休息！";
if(hours == 2)msg = "该休息了，身体可是革命的本钱！";
if(hours == 3)msg = "夜深人静，只有你敲击键盘的声音...";
if(hours == 4)msg = "四点过去了，你明天不上班？？";
if(hours == 5)msg = "该去晨练了！！";
if(hours == 6)msg = "你知道吗，此时是国内网络速度最快的时候！";
if(hours == 7)msg = "新的一天开始了，祝你过的快乐！";
if(hours == 8 || hours == 9 || hours == 10 )
msg = "上午好，你今天看上去很精神！";
if(hours == 11)msg = "十一点过了，快下班了吧？";
if(hours == 12)msg = "十二点过了，还没下班？";
if(hours == 13 || hours == 14)msg = "你不睡午觉？";
if(hours == 15 || hours == 16 || hours == 17 )
msg = "下午好";
if(hours == 18 || hours == 19)msg = "吃晚饭了吧？";
if(hours == 20 || hours == 21 || hours == 22 )
msg = "今天又在玩电脑，没节目？";
if(hours == 23)msg = "真是越玩越精神了，不打算睡了？";
if(hours == 0)msg = "凌晨了，还不睡？";
document.write("<br>提示信息:",msg);
//-->
</script>
</body>
</html>效果如图：
