c2dhtml5 sprite继承问题

[lebosky]

var JetSprite = cc.Sprite.extend({
_currentRotation:0,
ctor:function(){
this._super();
this.initWithFile(“images/jet.png”);
}
});

为什么运行的时候提示this.initWithFile is not a function

请问要如何调用initWithFile

[joelyoung (joel)]

改成this.init(“images/jet.png”);试试