今天刚开始看javascript的教材,边看边自己写,写到一个函数的时候实在不知道错在哪里了,只差字符一个一个拆开来看了,代码如下,请查看:
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<script type="text/javascript" >
function AD(){
var banners = new Array(3);
for(var i=0;i<banners.length;i++)
{
banners[i]=new Array(2);
banners[0][0]="http://www.baidu.com";
banners[0][1]="PICTURE/1.Jpg";
banners[1][0]="http://www.163.com";
banners[1][1]="PICTURE/2.jpg";
banners[2][0]="http://www.google.com";
banners[2][1]="PICTURE/3.jpg";
var current =Math.round(2*Math.random());
document.write("<center><a href='"+banners[current][0]+"'>");
document.write("<img src='"+banners[current][1]+"'width=500 height=100></a>");
document.write("<br><a href='"+banners[current][0]+"'>CLICK HERE</a></center>");
}
</script>
<base href="<%=basePath%>">
<title>TEST</title>
</head>
<body>
<input type="button" value="CLICK" onclick="AD();">
</body>
</html>
错误提示:SCRIPT5007: 属性“AD”的值为 null、未定义或不是 Function 对象
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<script type="text/javascript" >
function AD(){
var banners = new Array(3);
for(var i=0;i<banners.length;i++)
{
banners[i]=new Array(2);
banners[0][0]="http://www.baidu.com";
banners[0][1]="PICTURE/1.Jpg";
banners[1][0]="http://www.163.com";
banners[1][1]="PICTURE/2.jpg";
banners[2][0]="http://www.google.com";
banners[2][1]="PICTURE/3.jpg";
var current =Math.round(2*Math.random());
document.write("<center><a href='"+banners[current][0]+"'>");
document.write("<img src='"+banners[current][1]+"'width=500 height=100></a>");
document.write("<br><a href='"+banners[current][0]+"'>CLICK HERE</a></center>");
}
</script>
<base href="<%=basePath%>">
<title>TEST</title>
</head>
<body>
<input type="button" value="CLICK" onclick="AD();">
</body>
</html>
错误提示:SCRIPT5007: 属性“AD”的值为 null、未定义或不是 Function 对象
<html>
<head>
<script type="text/javascript" >
function AD(){
var banners = new Array(3);
banners[0] = new Array(2);
banners[0][0]="http://www.baidu.com";
banners[0][1]="PICTURE/1.Jpg";
banners[1] = new Array(2);
banners[1][0]="http://www.163.com";
banners[1][1]="PICTURE/2.jpg";
banners[2] = new Array(2);
banners[2][0]="http://www.google.com";
banners[2][1]="PICTURE/3.jpg";
var current = Math.round(2*Math.random());
document.write("<center><a href='"+banners[current][0]+"'>");
document.write("<img src='"+banners[current][1]+"'width=500 height=100></a>");
document.write("<br><a href='"+banners[current][0]+"'>CLICK HERE</a></center>");
}
</script>
<title>TEST</title>
</head>
<body>
<input type="button" value="CLICK" onclick="AD();">
</body>
</html>
function AD(){
var banners = new Array(3);
for(var i=0;i<banners.length;i++)
{
banners[i]=new Array(2);
banners[0][0]="http://www.baidu.com";
banners[0][1]="PICTURE/1.Jpg";
banners[1][0]="http://www.163.com";
banners[1][1]="PICTURE/2.jpg";
banners[2][0]="http://www.google.com";
banners[2][1]="PICTURE/3.jpg";
var current =Math.round(2*Math.random());
document.write("<center><a href='"+banners[current][0]+"'>");
document.write("<img src='"+banners[current][1]+"'width=500 height=100></a>");
document.write("<br><a href='"+banners[current][0]+"'>CLICK HERE</a></center>");
}
}