帮看一下怎么回事?谢谢
newNode.className='none';
newNode.style.top=(i*20)+'px';
newNode.style.left=(j*20)+'px';
container.appendChild(newNode);
div.push(newNode);
}
[size=18px]Uncaught TypeError: Cannot read property 'appendChild' of undefined
at initDiv (game.js:39)
at Game.init (game.js:64)
at Local.start (local.js:10)
at script.js:2