var tmp = cc.Sprite.create(res.Plane_png);
var theSize = tmp.getContentSize();
var fullRect = cc.rect(0,0,theSize.width,theSize.height);
var insetRect = cc.rect(6,6,theSize.width-6,theSize.height-6);
var scale9sprite = cc.Scale9Sprite.create(res.Plane_png,fullRect,insetRect);
运行到最后一行的时候出错了 错误提示:Uncaught TypeError: Cannot call method ‘create’ of undefined 应该怎么创建九宫格动画?