完美运行了
<!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 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+1)*(j+1);
if(myarr[i][j]<10){
myarr[i][j] ="0"+myarr[i][j];
}
}
}
for(var i=0;i<3;i++){
for(var j=0;j<6;j++){
document.write(myarr[i][j]+" ");
}
document.write("<br>");
}
</script>
</head>
<body>
</body>
</html>