Codeproject--JavaScript For Beginners(1) Embedding and including
2005-01-06 17:53
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Embedding and including
让我们还是先看看下面的一个简单例子:
<html>
<head>
<title>This is a JavaScript example</title>
<script language="JavaScript">
<!--
document.write("Hello World!");
//-->
</script>
</head>
<body> Hi, man! </body>
</html>
通常,JavaScript代码是从标记<script language="JavaScript">开始,以</Script>结束.这样的代码在<head>和</head>之间.但是有时候,我们也可把代码插入到<body>标记中
<html>
<head></head>
<body>
<script>
.....// The code embedded in the <body> tags.
</script>
</body>
</html>
为什么我们在写JavaScript代码的地方加上这样的<!—和//à的注释呢?这样做的目的是为了是JavaScript脚本不执行在不支持JavaScript的老版本的浏览器中.
<script language="JavaScript1.2">
你可以利用SRC属性来引入外部含有JavaScrpt代码的文件
<script language="JavaScript" src="hello.js"></script>
例如,上面的代码引入了外部文件:hello.js
document.write("Hello World!")
这个外部文集是一个简单的含有JavScript的文件,扩展名是”.js”,注意:
引入的外部文件要确保是可以正确访问的.
代码不能包含<script language…>和</script>否责你会得到错误信息.
JavaScript For Beginners
让我们还是先看看下面的一个简单例子:
<html>
<head>
<title>This is a JavaScript example</title>
<script language="JavaScript">
<!--
document.write("Hello World!");
//-->
</script>
</head>
<body> Hi, man! </body>
</html>
通常,JavaScript代码是从标记<script language="JavaScript">开始,以</Script>结束.这样的代码在<head>和</head>之间.但是有时候,我们也可把代码插入到<body>标记中
<html>
<head></head>
<body>
<script>
.....// The code embedded in the <body> tags.
</script>
</body>
</html>
为什么我们在写JavaScript代码的地方加上这样的<!—和//à的注释呢?这样做的目的是为了是JavaScript脚本不执行在不支持JavaScript的老版本的浏览器中.
<script language="JavaScript1.2">
你可以利用SRC属性来引入外部含有JavaScrpt代码的文件
<script language="JavaScript" src="hello.js"></script>
例如,上面的代码引入了外部文件:hello.js
document.write("Hello World!")
这个外部文集是一个简单的含有JavScript的文件,扩展名是”.js”,注意:
引入的外部文件要确保是可以正确访问的.
代码不能包含<script language…>和</script>否责你会得到错误信息.
JavaScript For Beginners
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