1、在网页中写入javascript代码有两种方式，和写css代码一样，有一种方法是嵌入到网页中的，javascript代码可以嵌入到网页的<head>代码中，也可以嵌入到<body>代码中如图
2、<!DOCTYPE HTML><html><head><m髫潋啜缅eta http-equiv="Content-Type" content="text/html; charset=utf-8"><title>js弹出时间</title><script language="javascript">var now=new Date();//获得日期对象var year=now.getYear()+1900;//获得年var month=now.getMonth()+1;var date=now.getDate();var day=now.getDay() ;var arr_week=new Array("星期一","星期二","星期三","星期四","星期五","星期六");var week=arr_week[day];var time="当前时间"+year+"年"+month+"月"+date+"日"+week;alert(time);</script></head><body></body></html>
3、最后效果
4、另一种方式是链接外部js代码如图
5、新建一个js文件，后缀为.js的function getDate(){var now=new Date();//获得日期对象var year租涫疼迟=now.getYear()+1900;//获得年var month=now.getMonth()+1;var date=now.getDate();var day=now.getDay() ;var arr_week=new Array("星期一","星期二","星期三","星期四","星期五","星期六");var week=arr_week[day];var time="当前时间"+year+"年"+month+"月"+date+"日"+week;alert(time);}
6、在html中写入<!DOCTYPE HTML><html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"><title>js弹出时间</title><script language="javascript" src="js2.js"></script></head><body onLoad="getDate()"></body></html>
7、效果如图
