写了一个超简单的js,可是不知道怎么调用

<html>
<script>
var mm=function()
{
alert('555');
}
mm();
</script>
</html>

解决方案 »

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<!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=gb2312" />
<title>无标题文档</title>
</head>
<script language="javascript">
var mm=function()
{
alert('555');
}
mm();
</script>
<body>
</body>
</html>
<!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=gb2312" />
<title>无标题文档</title>
</head>
<script language="javascript">
var mm=function()
{
    alert('555');
}
mm();
</script>
<body>
</body>
</html>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML>
<HEAD>
  <TITLE> alert </TITLE>
</HEAD>
<script>
var mm=function()
{
alert('555');
}
</script>  <BODY>
  <input type="button" value=" 点我我就弹！" onclick="mm()"/>
</BODY>
</HTML>
<html>
<script>
var mm=function()
{
alert('555');
}
window.onload=mm;
</script>
</html>
还可以在body上用！<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML>
<HEAD>
  <TITLE> alert </TITLE>
</HEAD>
<script>
var mm=function()
{
alert('555');
}
</script> <BODY onLoad=mm>
</BODY>
</HTML>
<html>
<script>
var mm=function()
{
alert('555');
}
window.onload=mm;
</script>
</html>
<html>
<head>
<script language="javascript">
function mm()
{
    alert('555');
}
</script>
</head>
<body onload="mm()">
</body>
</html>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML>
<HEAD>
  <TITLE> alert </TITLE>
</HEAD>
<script>
var mm=function()
{
alert('555');
}
</script> <BODY>
  <input type="button" value="測試" onclick="mm()"/>
</BODY>
</HTML> ps:mm就是函數名
<html>
<script>
var mm=function()
{
alert('555');
}
mm();
</script>
</html>
<html>
<script>
var mm=function()
{
alert('555');
}
window.onload=mm;
</script>
</html>