运行无显示了，自己看不出哪里出错~求帮忙！
<!DOCTYPE HTML>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>二维数组</title>
<script type="text/javascript">
var A=new Array();
for(var i=1; i<4;i++)
{
A[i]=new Array();
for (var j=1; j<6; j++)
{
A[i]][j]=i*j;
document.write("A["+i+"]["+j+"]的值:"+A[i][j]+"<br>");
}
}
</script>
</head>
<body>
</body>
</html>改A就不行了吗 :(
