为什么显示不出来
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>二维数组</title>
<script type="text/javascript">
var myarr=new Array();
for (var i=0;i<3;i++)
{
myarr[i]=new Array();
for (var j=0;j<6;j++)
{
myarr[i][j]=i*j;
document.write("myarr["+i+"]["+j+"]的值="myarr[i][j]+"<br>");
}
}
</script>
</head>
<body>
</body>
</html>
