var loadingBar = new ccui.LoadingBar();
loadingBar.loadTexture(“res/slider_bar_active_9patch.png”);
loadingBar.setCapInsets(cc.rect(0, 0, 0, 0));
loadingBar.setContentSize(cc.size(300, 30));
loadingBar.setPercent(0);
loadingBar.x = size.width / 2;
loadingBar.y = size.height / 2 + loadingBar.height / 4;
this.addChild(loadingBar);这样写有问题吗?为什么浏览器提示Uncaught ReferenceError: ccui is not defined ?还是说我少了哪一步没做?