JS显示欢迎页面和当前时间

//ch4_examp7.html

//运行下面的代码

<script type="text/javascript">

var greeting;

var nowDate = new Date();

var nowHour = nowDate.getHours();

var nowMinute = nowDate.getMinutes();

var nowSecond = nowDate.getSeconds();

if (nowMinute < 10)

{

nowMinute = "0" + nowMinute;

}

if (nowSecond < 10) {

nowSecond = "0" + nowSecond;

}

if (nowHour < 12) {

greeting = "Hi,Good Morning";

}

else if (nowHour < 17) {

greeting = "Hi,Good Afternoon";

}

else {

greeting = "Hi,Good Evening";

}

document.write("<h4>" + greeting + " and welcome to my website!</h4>");

document.write("According to your clock the time is");

document.write(nowHour + ":" + nowMinute + ":" + nowSecond);

</script>

显示结果：





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