1.Javascript代码在html中的使用:
(1).在HTML文件中直接写(可以在head或body,建议声明在head,使用在body)。
(2)直接引用其他*.js文件。
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>无标题文档</title>
</head>
<body>
<script src="javascript/function.js" language="javascript"></script>
</body>
</html>
2.Javascript函数的调用方式:
(1)直接调用。
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>函数的简单应用</title>
<script type="text/javascript">
function account(price,number){
return price*number
}
</script>
</head>
<body>
<script type="text/javascript">
var result = account(3.99,2); //在页面中调用print()函数
alert(result);
</script>
</body>
</html>
(2)事件驱动的方式调用:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>函数的简单应用</title>
<script type="text/javascript">
function test(){
alert("test");
}
</script>
</head>
<body>
<form action="" method="post name="form1">
<input type="button" value="提交" onclick="test();">
</form>
</body>
</html>
3.链接的方式调用:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>函数的简单应用</title>
<script type="text/javascript">
function test(){
alert("test");
}
</script>
</head>
<body>
<a href="javasctipt:test();">test</a>
</body>
</html>